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AP Flashcards

Terms : Hide Images
6932698615ArmisticeNov 110
6932698616Schieffindeveloped attack on France1
6932698617Triple Ententeagreement between Britain2
6932698618Vladimirintroduce communism to Russia3
6932698619ArthurGerman minister4
6932698620Archdukeassassinated in Sarajevo5
6932698621John Jgeneral in charge6
6932698622Lusitaniasinking ship along zimmerman7
6932698623Nicholas IIlast of russians tsars8
6932698624Selective Service Actconscription of young men9
6932698625Woodrowpresident10
6932698626Triple Allianceagreement between Germany11
6932698627League of NationsWoodrow Wilson12
6932698628U-boatsGerman Submarines13
6932698629Western Frontbattle line14

AP Vocabulary List 22 Flashcards

Terms : Hide Images
6166462046chasteningto inflict suffering for purposes of moral improvement; to restrain; to subdue0
6166462047corporealof the nature of the human body; bodily; material; tangible1
6166463416derviveto trace from a source of origin2
6166463417dubiousdoubtful; questionable3
6166463418ethosa quality the evokes trust and credibility4
6166465065equivocalallowing the possibility of several different meanings; deliberately5
6166465066erranterring; straying; moving in an aimless manner6
6166465067goadprovoke or annoy; a spiked stick used for driving cattle7
6166466551resplendentshiningly brilliant; gleaming; splendid8
6166466552ruminateto muse or ponder; to chew over again and again9

AP Psychology - Sensation Flashcards

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6653616600TransductionThe translation of incoming stimuli into neural signals Neural impulses from the senses travel first to the thalamus and then on to different cortices of the brain The sense of smell is the one exception to this rule0
6653625108Sensory AdaptationDecreasing responsiveness to stimuli due to constant stimulation For example, we eventually stop perceiving a persistent scent in a room1
6653635652Sensory Habituation (also called Perceptual Adaptation)Our perception of sensations is partially determined by how focused we are on them' For example, no longer hearing traffic from the nearby freeway after having lived in a place for years2
6653641050Cocktail-Party PhenomenonIf you are talking with a friend and someone across the room says your name, your attention will probably involuntarily switch across the room An example of selective attention3
6653647195SensationSensation occurs when one of our senses (sight, smell, hearing, touch, or taste) is activated by something in our environment Occurs before the process of perception (the brain interpreting these sensations)4
6653653137PerceptionThe brain's interpretation of sensory messages Occurs after the process of sensation (the activation of our senses of sight, smell, hearing, touch., and taste). The process of understanding and interpreting sensations5
6653661445Energy SensesThe senses of vision, hearing, and touch These senses gather energy in the form of light, sound waves, and pressure, respectively6
6653666271Chemical SensesThe senses of taste and smell These senses work by gathering chemicals7
6653671062VisionDominant sense in human beings. Sighted people use vision to gather information about their environment more than any other sense The process of vision involves several steps: 1. Light is reflected off objects 2. Reflected light coming from the object enters the eye through the cornea and pupil, is focused by the lens, and is projected on to the retina where specialized neurons are activated by the different wavelengths of light 3. Transduction occurs when light activates the special neurons in the retina and sends impulses along the optic nerve to the occipital lobe of the brain 4. Impulses from the left side of each retina (right visual field) go to the left hemisphere of the brain, and those from the right side of each retina (left visual field) go to the right side of the brain 5. Visual cortex receives the impulses from the retina, which activate feature detectors for vertical lines, curves, motion, among others. What we perceive visually is a combination of these features.8
6653713881CorneaProtective covering on the front of the eye Helps focus the light9
6653717046PupilOpening in the center of the eye Similar to the shutter of the camera Muscles that control the pupil (called the iris) open it (dilate) to let more light in and also make it smaller to let less light it10
6653722467LensFocuses light that enters the pupil Curved and flexible in order to focus the light As the light passes through the lens, the image is flipped upside down and inverted The focused inverted image projects on the retina11
6653728116RetinaLike a screen on the back of your eye As the light passes through the lens, the image is flipped upside down and projected on the retina Special neurons in the retina (cones, which detect color, and rods, which detect black and white) are activated by light and send impulses along the optic nerve to the occipital lobe of the brain12
6653736396Optic NerveNerve leading from the retina that carries impulses to the occipital lobe of the brain The optic nerve is divided into two parts. Impulses from the left side of each retina (right visual field) go to the left hemisphere of the brain, and those from the right side of each retina (left visual field) go to the right side of the brain13
6653744534Occipital LobeLocation of the visual cortex Part of the brain that processes vision sensations Receives impulses via the optic nerve The optic nerve is divided into two parts. Impulses from the left side of each retina (right visual field) go to the left hemisphere of the brain, and those from the right side of each retina (left visual field) go to the right side of the brain14
6653750155Feature DetectorsPerception researchers Hubel and Weisel discovered that groups of neurons in the visual cortex respond to different types of visual images Visual cortex has feature detectors for vertical lines, curves, and motion, among others. What we perceive visually is a combination of these features15
6653759669Visible LightColor is perceived due to a combination of different factors: Light intensity-How much energy the light contains determines how bright the object appears Light wavelength-The length of the light waves determines the particular hue we see. We see different wavelengths within the visible light spectrum as different colors16
6653770003Rods and ConesSpecial neurons in the retina that are activated by light Cones are activated by color Rods respond to black and white17
6653774673Bipolar Cells and Ganglion CellsThese cells make up different layers in the retina In the retina, light activates rod and cone cells Rods and cones send signals to the next layer of cells in the retina: bipolar cells Bipolar cells send signals to the next layer of cells in the retina: ganglion cells Ganglion cells send signals to the brain through the optic nerve18
6653781423FoveaIndentation at the center of the retina where cones are concentrated When light is focused onto your fovea, you see it in color Your peripheral vision, especially at the extremes, relies on rods and is mostly in black and white Foveal vision, focusing light on the fovea, results in the sharpest and clearest visual perception19
6653914067Blind SpotThe spot on the retina where the optic nerve leaves the retina and there are no rods or cones We cannot detect objects in our blind spot, but our brains and the movement of our eyes accommodate for the blind spot, so we usually don't notice it20
6653919998Trichromatic TheoryA theory of color vision (the other theory is Opponent-Process Theory) Also called Young-Helmholtz Theory Hypothesizes that we have three types of cones in the retina: cones that detect the primary colors of light-blue, red, and green These cones are activated in different combinations to produce all the colors of the visible spectrum Even though this theory has some research support and makes sense intuitively, it cannot explain such visual phenomena as afterimages and color blindness Most researchers agree that color vision is explained by a combination of the Trichromatic and Opponent-Process Theory21
6653932903Color BlindnessIndividuals with dichromatic color blindness cannot see either red/green shades or blue/yellow shades Those who have monochromatic color blindness see only shades of gray22
6653938773Opponent-Process TheoryA theory of color vision (the other theory is Trichomatic Theory) States that the sensory receptors arranged in the retina come in pairs: red/green pairs, yellow/blue pairs, and black/white pairs If one sensor is stimulated, its pair is inhibited from firing. This theory explains color afterimages If you stare at the color red for a while, you fatigue the sensors for red. Then when you switch your gaze and look at a blank page, the opponent part of the pair for red will fire, and you will see a green afterimage The Opponent-Process Theory explains afterimage and color blindness Most researchers agree that the color vision is explained by a combination of the Trichromatic and Opponent-Process Theories23
6653957135HearingThe hearing process occurs in several steps: Sound waves, vibrations in the air, travel through the air, and are then collected by our ears Sound waves have amplitude and frequency Amplitude is the height of the wave and determines the loudness of the sound, which is measured in decibels Frequency, which is measured in megahertz, refers to the length of the waves and determines pitch Vibrations enter the ear and vibrate the eardrum, which connects with three bones in the middle ear: the hammer (or malleus), the anvil (or incus), and the stirrup (or stapes) The vibration is transferred to the oval window, a membrane very similar to the eardrum The oval window membrane is attached to the cochlea, where the process of transduction occurs and neural messages are sent to the auditory cortex in the temporal lobe24
6653974431Sound WavesVibrations in the air. They travel through the air and are collected by our ears Sound waves have amplitude and frequency Amplitude is the height of the wave and determines the loudness of the sound, which is measured in decibels Frequency, which is measured in megahertz, refers to the length of the waves and determines pitch25
6653981535CochleaThe process of transduction (where sound waves are changed into neural impulses) occurs in the cochlea Shaped like a snail's shell and filled with fluid. As sound waves move the fluid, hair cells move. Neurons are activated by movement of the hair cells. Neural messages are sent to the auditory cortex in the temporal lobe26
7218418379Pitch TheoriesTheories that explain how we hear different pitches or tones Place Theory explains that the hair cells in the cochlea respond to different frequencies of sound based on where they are located in the cochlea According to Frequency Theory, Place Theory accurately describes how hair cells sense the upper range of pitches but not the lower tones. Lower tones are sensed by the rate at which the cells fire. We sense pitch because the hair cells fire at different rates (frequencies) in the cochlea27
7218428354Nerve DeafnessOccurs when the hair cells in the cochlea have been damaged, usually by loud noise. In conduction deafness, the other type of deafness, something goes wrong with the system of conducting the sound to the cochlea (in the ear canal, eardrum, hammer/anvil/stirrup, or oval window). Difficult to treat because no method yet found that will encourage the hair cells to regenerate.28
7218438083TouchSense of touch is activated then our skin is indented, pierced, or experiences a change in temperature. Some nerve endings in the skin respond to pressure; others respond to temperature. Brain interprets the amount of indentation (or temperature change) as the intensity of the touch, from a light touch to a hard blow. We sense placement of the touch by the place on our body where the nerve endings fire. Nerve endings are more concentrated in different parts of our body. If we want to feel something, we usually use our fingertip, an area of high nerve concentration, rather than the back of our elbow, an area of low nerve concentration. Pain is a useful response because it warns us of potential danger.29
7218467118Gate-Control TheoryExplains how we experience pain Some pain messages have a higher priority than others. When a high-priority message is sent, the gate swings open for it an shut for low-priority messages, which will not be felt. Of course, this gate is not a physical gate swinging in the nerve, it is just a convenient way to understand how pain messages are sent. For example, when you scratch an itch, the gate swings open for your high-intensity scratching and shuts for low-intensity itching; this stops the itching for a short period of time. Endorphins, or pain-killing chemicals in the body, also swing the gate shut. Natural endorphins in the brain, which are chemically similar to opiates like morphine, control pain.30
7221769598Taste (or Gustation)Nerves involved in the chemical senses (taste and smell) respond to chemicals rather than to energy. Taste buds on the tongue absorb chemicals from the food we eat. Taste buds are located on papillae, the bumps you can see on your tongue. Taste buds are located all over the tongue and on some parts of the inside of the cheeks and roof of the mouth. Humans sense five different types of tastes: sweet, salty, sour, umami, and bitter. People differ in their ability to taste food. The more densely packed the taste buds, the more chemicals are absorbed, and the more intensely the food is tasted. The flavor of food is actually a combination of taste and smell.31
7221788287Smell (or Olfaction)Molecules of substances rise into the air and are drawn into our nose. The molecules settle in a mucous membrane at the top of each nostril and are absorbed by receptor cells located there. As many as 100 different types of smell receptors may exist. These receptor cells are linked to the olfactory bulb, which gathers the messages from the olfactory receptor cells and send this information to the brain. Nerve fibers from the olfactory bulb connect to the brain at the amygdala and then to the hippocampus, which make up the limbic system, which is responsible for emotional impulses and memory. This direct connection to the limbic system may explain why smell is such a powerful trigger for memory.32
7222990504Vestibular SenseOur vestibular sense tells us about how our body is oriented in space. Three semicircular canals in the inner ear give the brain feedback about body orientation. When the position of your head changes, the fluid moves in the canals, causing sensors in the canals to move. The movement of these hair cells activate neurons, and their impulses go to the brain. For example, our vestibular sense helps us figure out which way is up or down when doing a flip.33
7223030304Kinesthetic SenseGives us feedback about the position and orientation of specific body parts. Receptors in our muscles and joints send information to our brain about our limbs. This information, combined with visual feedback, lets us keep track of our body.34
7223033851Absolute ThresholdSmallest amount of stimulus we can perceive. Technical definition - the minimal amount of stimulus we can detect 50 percent of the time.35
7223039246Subliminal MessagesStimuli below our absolute threshold. Research does not support claim that subliminal messages affect our behavior in overt ways.36
7223042452Difference Threshold (also Just-Noticeable Difference)Smallest amount of change needed in a stimulus before we detect a change. Computed by Weber's law, named after psychophysicist Ernst Weber. Change needed is proportional to the original intensity of the stimulus. The more intense the stimulus, the more it will need to change before we notice a difference.37
7223049936Weber's LawNamed after psychophysicist Ernst Weber Describes the difference thresholds for different senses. The change needed is proportional to the original intensity of the stimulus. The more intense the stimulus is, the more it will need to change before we notice a difference.38
7223060923Signal Detection TheoryInvestigates the effects of distractions and inferences we perceive while experiencing the world. Takes into account how motivated we are to detect certain stimuli and what we expect to perceive. These factors together are called response criteria. By using factors like response criteria, Signal Detection Theory tries to explain and predict the different perceptual mistakes we make (such as not seeing a stop sign, or thinking that you see a friend in the distance when you are actually seeing a stranger.)39
7249985242Top-Down ProcessingWhen we use top-down processing, we perceive by filling in gaps in what we sense. Occurs when you use your background knowledge to fill in gaps in what you perceive. Our experience creates schemata, mental representations of how we expect our world to be. Our schemata influence how we perceive the world. Schemata can create a perceptual set, in which is a predisposition to perceiving something in a certain way.40
7250002667Perceptual SetOur experience creates schemata, mental representations of how we expect the world to be. Our schemata influence how we perceive the world. Schemata can create a perceptual set, which is predisposition to perceiving something in a certain way. For example, you may perceive a cloud as being shaped like a heart around Valentine's Day.41
7250016374Bottom-Up Processing (also Feature Analysis)Opposite of top-down processing. Instead of using our experience to perceive an object, we use only the features of the object itself to build a complete perception. We start our perception at the bottom with the individual characteristics of the image and put all those characteristics together into our final perception. Our minds build the picture from the bottom up using basic characteristics.42
7250033103Gestalt RulesDeveloped by a group of researchers from the early 20th century who described the principles that govern how we perceive groups of objects (e.g. proximity, similarity, continuity, closure). Based on observation that we normally perceive images as groups, not isolated elements. This process believe to be innate and inevitable.43
7250056916ConstancyEvery object we see changes minutely from moment to moment due to our changing angle of vision, variations in light, and so on. Our ability to maintain a constant perception of an object despite these challenges. Several types of constancy: size constancy, shape constancy, and brightness constancy.44
7250066596Size ConstancyObjects closer to our eyes will produce bigger images on our retinas, but we take distance into account in our estimations of size. We keep a constant size in mind for an object (if we are familiar with the typical size of the object) and know that it does not grow or shrink in size as it moves closer or farther away.45
7250077320Shape ConstancyObjects viewed from different angles will produce different shapes on our retinas, but we know the shape of an object remains constant. For example, the top of a coffee mug viewed from a certain angle will produce an elliptical image on our retinas, but we know the top is circular due to shape constancy.46
7250091056Brightness ConstancyWe perceive objects as being constant color even as the light reflecting off the objects changes. For example, we will perceive a brick wall as brick red even as the daylight fades and the actual color reflected from the wall turned gray.47
7250097830Depth CuesResearchers divide the cues that we use to perceive depth into two categories: Monocular cues - Depth cues that do not depend on having two eyes (e.g., linear perspective, interposition, shading, and texture gradient). Binocular cues - Cues that depend on having two eyes (e.g., retinal disparity and convergence).48

AP Spanish Tema 4 Flashcards

Terms : Hide Images
9523869543La docencia / el docenteTeaching / the teacher0
9523869544La aptitude / la habilidadThe ability1
9523869545El conocimientothe knowledge2
9523869546La enseñanzaThe teaching3
9523869547El riesgo / el desafíothe risk / the challenge4
9523869548Los derechosthe rights / the law5
9523869549AprovecharTo take advantage of6
9523869550La destrezaThe skill7
9523869551El día habilThe work day8
9523869552El aulaThe classroom9
9523869553La escasezThe lack of / scarcity / shortage10
9523869554equivocarseTo make a mistake / error11
9523869555La propagaciónThe spreading / the dissemination12
9523869556El porvenirThe future13
9523869557La apuestaA bet / a prediction14
9523869558El anheloThe desire / the longing15
9523869559AportarTo contribute16
9523869560La fortalezaThe strength17
9523869561La debilidadThe weakness18
9523869562La remuneraciónThe payment / the compensation19
9523869563El consejoThe advice20
9523869564La abogacíaThe legal profession21
9523869565EgresarTo graduate22
9523869566El aprendizajeThe learning23
9523869567Por lo tantoTherefore24
9523869568Conviene indicarIt is important to point out25
9523869569Tiempo disponibleAvailable time26
9523869570Constar deTo consist of27
9523869571Dar en el blancoTo hit the target / to hit the nail on the head28
9523869572La bromaThe joke / the prank29
9523869573La diversiónThe pastime / fun / hobby30
9523869574El entretenimientoThe entertainment31
9523869575El géneroThe genre32
9523869576Provenir deTo originate / to come from33
9523869577SolerTo usually do / to tend to do34
9523869578AutóctonoIndigenous / native35
9523869579Ajeno/a -- / ajeno aForeign / belonging to another / unaware36
9523869580El rasgoFeature / trait / characteristic37
9523869581AlimenticiaNourishing38
9523869582La gastronomíaGastronomy / the art of cooking, eating39
9523869583El concursoA competition / contest40
9523869584EsforzarseTo make an effort / strain41
9523869585ConseguirTo get, to obtain42
9523869586Darse por vencidoTo give up43
9523869587EnriquecerTo enrich44
9523869588La lengua maternaThe mother tongue45
9523869589El aprendizajeThe learning46
9523869590La semenjanzaThe similarity, resemblance47
9523869591La fluidezThe fluency48
9523869592El entretenimiento pasajeroThe fleeting entertainment49
9523869593El lugareñoThe local inhabitant50
9523869594El árbitroThe referee51
9523869595DesfilarTo parade, to pass by52
9523869596A las damasCheckers (the game)53
9523869597De ese modoIn that manner54
9523869598Por lo generalGenerally55
9523869599De hechoAs a matter of fact56
9523869600Ya queSince57
9523869601El ocioThe leisure58
9523869602El sitioThe place59
9523869603InfluirTo influence60
9523869604El salvavidasThe life jacket, the lifeguard61
9523869605La colinaThe hill62
9523869606Despegar / aterrizarTo take off / to land63
9523869607A pie / de pieOn foot / standing up64
9523869608El barco de velaThe sailboat65
9523869609La tramaThe plot, the conspiracy66
9523869610El chisteThe joke67
9523869611El tuteouse of "tú" form of address, as opposed to formal "usted" form68
9523869612El emoticonThe emotion icon69
9523869613El bienestarThe well being70
9523869614La suerteThe luck71
9523869615La creenciaThe belief72
9523869616El recorrido / recorrerThe trip, tour / To travel around, to traverse73
9523869617La aficiónThe fondness, the interest, the passion74
9523869618DisfrutarTo enjoy75
9523869619BrindarTo drink a toast, to offer, to give76
9523869620Una Buena vista / el punto de vistaA good view / a point of view77
9523869621El firmamentoThe sky, the heavens78
9523869622DespejadoClear, alert79
9523869623celesteSky blue, heavenly80
9523869624Por un lado/por otro ladoOn the one hand / on the other hand81
9523869625En otras palabrasIn other words,82
9523869626En realidadActually, in fact83
9523869627En resumenIn short,84
9523869628El ser humanoThe human being85
9523869629La Amistad / la confianzaThe friendship86
9523869630NutrirTo nourish87
9523869631La antipatíaThe dislike88
9523869632El rencorThe resentment, bitterness, had feelings89
9523869633Los altibajosThe ups and downs90
9523869634La etapaThe phase, a period of time, the stage91
9523869635El gestoThe gesture92
9523869636El valor, valorarThe value, to value93
9523869637El deberThe duty94
9523869638La niñez/ la juventud / al adultez / la vejezChildhood / youth / adulthood / elderly age95
9523869639PelearseTo argue, to fight,96
9523869640La seriedad / la tonteríaThe seriousness / the foolishness97
9523869641El enfado / la felicidadThe anger / the happiness98
9523869642La vergüenza / la rabiaThe shame, embarrassment / the rage99
9523869643La comodidad / el orgulloThe comfort / the pride100
9523869644ForjarTo build up, to forge101
9523869645PerdurableLong-lasting, eternal102
9523869646El cariño, afectoThe affection, the caress103
9523869647La purezaThe purity104
9523869648La ductilidadThe malleability, easy to mold105
9523869649La validezThe validity106
9523869650semejanteSimilar, alike, such107
9523869651Hay que tomar en cuentaOne must consider that108
9523869652No cabe duda queNo doubt that109
9523869653A causa deBecause of110
9523869654A fin de cuentasAfter all,111
9523869655La lealtadThe loyalty112
9523869656El sentido de humorThe sense of humor113
9523869657ExtrañarThe miss someone who is far away114
9523869658afligirseTo suffer, to grieve115
9523869659Llevarse bien / llevarse malTo get along well, to get along poorly116
9523869660BorrarTo erase117

AP Vocabulary List 24 Flashcards

Terms : Hide Images
6166531445adroitlyin a clever and skillful way0
6166531446allocationthe action to set apart for a particular purpose; assign; allot1
6166532925ascetica person who dedicates his or her life to a pursuit of contemplative ideals and practices self-mortification for religious reasons; monk; hermit2
6166532926beguilecharm or enchant someone, sometimes in a deceptive way3
6166532927enjointo instruct or urge someone to do something4
6166534879envoya diplomatic agent5
6166534880ideologya system of ideas and ideals, especially one that forms the basis of political theory and policy6
6166534881interlopera person who interferes or meddles in the affairs of others7
6166536860kowtowto act in an excessively subservient manner8
6166536861vicariousexperienced in the imagination through the feelings or actions of another person9

AP Psychology AP Review Flashcards

Terms : Hide Images
9781387145psychologythe study of behavior and mental processes0
9781387146psychology's biggest questionWhich is more important in determining behavior, nature or nurture?1
9781387147psychology's three levels of analysisbiopsychosocial approach (looks at the biological, psychological, and social-cultural approaches together)2
9781387148biological approachgenetics, close-relatives, body functions3
9781387149evolutionary approachspecies - helped with survival (ancestors)4
9781387150psychodynamic approach(Freud) subconscious, repressed feelings, unfulfilled wishes5
9781387151behavioral approachlearning (classical and operant) observed6
9781387152cognitive approachthinking affects behavior7
9781387153humanistic approachbecoming a better human (behavior, acceptance)8
9781387154social-cultural approachcultural, family, environment9
9781387155two reasons of why experiments are importanthindsight bias + overconfidence10
9781387156types of research methodsdescriptive, correlational, and experimental11
9781387157descriptive methodscase study survey naturalistic observation (DON'T SHOW CAUSE/EFFECT)12
9781387158case studystudies one person in depth may not be typical of population13
9781387159surveystudies lots of people not in depth14
9781387160naturalistic observationobserve + write facts without interference15
9781387161correlational methodshows relation, but not cause/effect scatterplots show research16
9781387162correlation coefficient+ 1.0 (both increase) 0 (no correlation - 1.0 (one increases, other decreases)17
9781387163experimental methoddoes show cause and effect18
9781387164populationtype of people who are going to be used in experiment19
9781387165sampleactual people who will be used (randomness reduces bias)20
9781387166random assignmentchance selection between experimental and control groups21
9781387167control groupnot receiving experimental treatment receives placebo22
9781387168experimental groupreceiving treatment/drug23
9781387169independent variabledrug/procedure/treatment24
9781387170dependent variableoutcome of using the drug/treatment25
9781387171confounding variablecan affect dependent variable beyond experiment's control26
9781387172scientific methodtheory hypothesis operational definition revision27
9781387173theorygeneral idea being tested28
9781387174hypothesismeasurable/specific29
9781387175operational definitionprocedures that explain components30
9781387176modeappears the most31
9781387177meanaverage32
9781387178medianmiddle33
9781387179rangehighest - lowest34
9781387180standard deviationhow scores vary around the mean35
9781387181central tendencysingle score that represents the whole36
9781387182bell curve(natural curve)37
9781387183ethics of testing on animalsneed to be treated humanly basically similar to humans38
9781387184ethics of testing on humansconsent debriefing no unnecessary discomfort/pain confidentiality39
9781387185sensory neuronstravel from sensory receptors to brain40
9781387186motor neuronstravel from brain to "motor" workings41
9781387187interneurons(in brain and spinal cord) connecting motor and sensory neurons42
9781387381neuron43
9781387188dendritesreceive messages from other neurons44
9781387189myelin sheathprotects the axon45
9781387190axonwhere charges travel from cell body to axon terminal46
9781387191neurotransmitterschemical messengers47
9781387192reuptakeextra neurotransmitters are taken back48
9781387193excitatory charge"Let's do it!"49
9781387194inhibitory charge"Let's not do it!"50
9781387195central nervous systembrain and spinal cord51
9781387196peripheral nervous systemsomatic nervous system autonomic nervous system52
9781387197somatic nervous systemvoluntary movements53
9781387198autonomic nervous systeminvoluntary movements (sympathetic and parasympathetic nervous systems)54
9781387199sympathetic nervous systemarousing55
9781387200parasympathetic nervous systemcalming56
9781387201neural networksmore connections form with greater use others fall away if not used57
9781387202spinal cordexpressway of information bypasses brain when reflexes involved58
9781387203endocrine systemslow uses hormones in the blood system59
9781387204master glandpituitary gland60
9781387205brainstemextension of the spinal cord responsible for automatic survival61
9781387206reticular formation (if stimulated)sleeping subject wakes up62
9781387207reticular formation (if damaged)coma63
9781387208brainstem (if severed)still move (without purpose)64
9781387209thalamussensory switchboard (does not process smell)65
9781387210hypothalamusbasic behaviors (hunger, thirst, sex, blood chemistry)66
9781387211cerebellumnonverbal memory, judge time, balance emotions, coordinate movements67
9781387212cerebellum (if damaged)difficulty walking and coordinating68
9781387213amygdalaaggression, fear, and memory associated with these emotions69
9781387214amygdala (if lesioned)subject is mellow70
9781387215amygdala (if stimulated)aggressive71
9781387216hippocampusprocess new memory72
9781387217cerebrumtwo large hemispheres perceiving, thinking, and processing73
9781387218cerebral cortexonly in higher life forms74
9781387219association areasintegrate and interpret information75
9781387220glial cellsprovide nutrients to myelin sheath marks intelligence higher proportion of glial cells to neurons76
9781387221frontal lobejudgement, personality, processing (Phineas Gage accident)77
9781387222parietal lobemath and spatial reasoning78
9781387223temporal lobeaudition and recognizing faces79
9781387224occipital lobevision80
9781387225corpus callosumsplit in the brain to stop hyper-communication (eliminate epileptic seizures)81
9781387226Wernicke's areainterprets auditory and hearing82
9781387227Broca's areaspeaking words83
9781387228plasticityability to adapt if damaged84
9781387229sensationwhat our senses tell us85
9781387230bottom-up processingsenses to brain86
9781387231perceptionwhat our brain tells us to do with that information87
9781387232top-down processingbrain to senses88
9781387233inattentional blindnessfail to "gorilla" because attention is elsewhere89
9781387234cocktail party effecteven with tons of stimuli, we are able to pick out our name, etc.90
9781387235change blindnessgiving directions and person is changed and we don't notice91
9781387236choice blindnesswhen defending the choice we make, we fail to notice choice was changed92
9781387237absolute thresholdminimum stimulation needed in order to notice 50% of the time93
9781387238signal detection theorywe notice what is more important to us (rather hear a baby crying)94
9781387239JND (just noticeable difference)(Weber's law) difference between different stimuli noticed in proportion95
9781387240sensory adaptationtired of noticing (Brain says, "Been there, done that. Next?"96
9781387241rodsnight time97
9781387242conescolor98
9781387243parallel processingnotice color, form, depth, movement, etc.99
9781387244Young-Helmholtz trichromatic theory3 corresponding color receptors (RGB)100
9781387245Hering's opponent-process theoryafter image in opposite colors (RG, YB, WB)101
9781387246trichromatic + opponent-processYoung-Helmholtz -> color stimuli Hering -> en route to cortex102
9781387247frequency we hear mosthuman voice103
9781387248Helmoltz (hearing)we hear different pitches in different places in basilar membrane (high pitches)104
9781387249frequency theoryimpulse frequency (low pitches)105
9781387250Helmholtz + frequency theorymiddle pitches106
9781387251Skin feels what?warmth, cold, pressure, pain107
9781387252gate-control theorysmall fibers - pain large fibers - other senses108
9781387253memory of painpeaks and ends109
9781387254smellclose to memory section (not in thalamus)110
9781387255groupingGestalt make sense of pieces create a whole111
9781387256grouping groupsproximity similarity continuity connectedness closure112
9781387257make assumptions of placementhigher - farther smaller - farther blocking - closer, in front113
9781387258perception =mood + motivation114
9781387259consciousnessawareness of ourselves and the environment115
9781387260circadian rhythmdaily biological clock and regular cycle (sleep and awake)116
9781387261circadian rhythm pattern- activated by light - light sensitive retinal proteins signal brains SCN (suprachiasmatic nucleus) - pineal gland decreases melatonin117
9781387262What messes with circadian rhythm?artificial light118
9781387263The whole sleep cycle lasts how long?90 minutes119
9781387264sleep stagesrelaxed stage (alpha waves) stage 1 (early sleep) (hallucinations) stage 2 (sleep spindles - bursts of activity) (sleep talk) stage 3 (transition phase) (delta waves) stage 4 (delta waves) (sleepwalk/talk + wet the bed) stage 5 (REM) (sensory-rich dreams) (paradoxical sleep)120
9781387265purpose of sleep1. recuperation - repair neurons and allow unused neural connections to wither 2. making memories 3. body growth (children sleep more)121
9781387266insomniacan't sleep122
9781387267narcolepsyfall asleep anywhere at anytime123
9781387268sleep apneastop breathing in sleep124
9781387269night terrorsprevalent in children125
9781387270sleepwalking/sleeptalkinghereditary - prevalent in children126
9781387271dreaming (3)1. vivid bizarre intense sensory experiences 2. carry fear/survival issues - vestiges of ancestors' survival ideas 2. replay previous day's experiences/worries127
9781387272purpose of dreaming (5 THEORIES)1. physiological function - develop/preserve neural pathways 2. Freud's wish-fulfillment (manifest/latent content) 3. activation synthesis - make sense of stimulation originating in brain 4. information processing 5. cognitive development - reflective of intelligence128
97813872731. Can hypnosis bring you back in time? 2. Can hypnosis make you do things you wouldn't normally do? 3. Can it alleviate pain? 4. What state are you in during hypnosis? 5. Who is more susceptible?1. cannot take you back in time 2. cannot make you do things you won't do 3. can alleviate pain 4. fully conscious ((IMAGINATIVE PEOPLE MORE SUSCEPTIBLE))129
9781387274depressantsslows neural pathways130
9781387275alcohol((depressant)) disrupts memory formation (REM) lowers inhibition expectancy effect131
9781387276barbituates (tranquilizers)((depressant)) reduce anxiety132
9781387277opiates((depressant)) pleasure reduce anxiety/pain133
9781387278stimulantshypes neural processing134
9781387279methamphetamine((stimulant)) heightens energy euphoria affects dopamine135
9781387280caffeine((stimulant))136
9781387281nicotine((stimulant)) CNS releases neurotransmitters calm anxiety reduce pain affects (nor)epinephrine and dopamine137
9781387282cocaine((stimulant)) euphoria affects dopamine, serotonin, and norepinephrine138
9781387283hallucinogenexcites neural activity139
9781387284ecstasy((hallucinogen)) reuptake is blocked affects dopamine and serotonin140
9781387285LSD((hallucinogen)) affects sensory/emotional "trip" (+/-) affects serotonin141
9781387286marijuana((hallucinogen)) amplify sensory experience disrupts memory formation142
9781387287learningorganism changing behavior due to experience (association of events)143
9781387288types of learningclassical operant observational144
9781387289famous classical psychologistsPavlov and Watson145
9781387290famous operant psychologistSkinner146
9781387291famous observational psychologistsBandura147
9781387292classical conditioningoutside stimulus148
9781387293Pavlov's experimentStep 1: US (food) -> UR (salivation) Step 2: NS (bell) -> US (food) -> UR (salivation) Later... CS (bell) -> CR (salivation)149
9781387294Watson's experimentwhite rat was given to Little Albert Step 1: US (noise) -> UR (cry) Step 2: NS (rat) -> US (noise) -> UR (cry) Later... CS (rat) -> CR (cry)150
9781387295generalizationany small, white fluffy creature will make Albert cry now151
9781387296discriminateany large, white fluffy creature won't make Albert cry152
9781387297extinctionstop "treating" with conditioned response153
9781387298spontaneous recoverybring stimulus back after a while154
9781387299operant conditioningcontrol by organism155
9781387300Skinner's experimentoperant chamber / Skinner box (lead to shaping)156
9781387301shapingget animal closer to doing what you want them to do157
9781387302reinforcerswant to continue behavior (positive reinforcement: give money to do laundry) (negative reinforcement: do to avoid nagging)158
9781387303punishmentswant to stop behavior (positive reinforcement: smack) (negative reinforcement: take away phone)159
9781387304fixed ratiohappens a certain number of times (Starbucks punch card)160
9781387305variable ratiohappens an unpredictable number of times (winning the lottery)161
9781387306organism must do these (2 times)fixed ratio and variable ratio162
9781387307fixed intervalhappens at a certain time (mailman comes to the house at 10:00 AM)163
9781387308variable intervalhappens at any time (receive texts from friends)164
9781387309these things happen regardless (2 times)fixed interval and variable interval165
9781387310Which (fixed/variable) conditions better?variable166
9781387311criticisms of Skinnerdoesn't take into account intrinsic motivation167
9781387312intrinsic motivationdoing something for yourself, not the reward168
9781387313extrinsic motivationdoing something for reward169
9781387314Skinner's legacyuse it personally, at school, and at work170
9781387315famous observational experimentBandura's Bobo doll171
9781387316famous observational psychologistBandura172
9781387317mirror neurons"feel" what is observed happens in higher order animals173
9781387318Bobo doll experiment legacyviolent video games/movies desensitize us see good: do good see evil: do evil174
9781387319observational learningbiological behaviors work best175
9781387320habituationget used to it -> stop reacting176
9781387321examples for observational learninglectures and reading177
9781387322serotonin involved with memoryspeeds the connection between neurons178
9781387323LTP((long-term potentiation)) strengthens potential neural forming (associated with speed)179
9781387324CREBprotein that can switch genes on/off with memory and connection of memories180
9781387325glutamate involved with memoryneurotransmitter that enhances LTP181
9781387326glucose involved with memoryreleased during strong emotions ((signaling important event to be remembered))182
9781387327flashbulb memorytype of memory remembered because it was an important/quick moment183
9781387328amygdala (memory)boosts activity of proteins in memory-forming areas to fight/flight184
9781387329cerebellum (memory)forms and stores implicit memories ((classical conditioning))185
9781387330hippocampus (memory)active during sleep (forming memories) ((information "moves" after 48 hours))186
9781387331memorylearning over time contains information that can be retrieved187
9781387332processing stagesencoding -> storage -> retrieval188
9781387333encodinginformation going in189
9781387334storagekeeping information in190
9781387335retrievaltaking information out191
9781387336How long is sensory memory stored?seconds192
9781387337How long is short-term memory stored?less than a minute193
9781387338How many bits of information is stored in short-term memory?7194
9781387339How many chunks of information is stored in short-term memory?4195
9781387340How many seconds of words is stored in short-term memory?2196
9781387341short term memory goes to ______________working memory197
9781387342working memorymake a connection and process information to mean something198
9781387343working memory goes to _________________long-term memory199
9781387344How much is stored in long-term memory?LIMITLESS200
9781387345implicit memorynaturally do201
9781387346explicit memoryneed to explain202
9781387347automatic processingspace, time, frequency, well-learned information203
9781387348effortful processingprocessing that requires effort204
9781387349spacing effectspread out learning over time205
9781387350serial position effectprimary/recency effect206
9781387351primary effectremember the first things in a list207
9781387352recency effectremember the last things in a list208
9781387353effortful processing (4 things)1. recency effect 2. spacing effect 3. testing effect 4. serial position effect209
9781387354semantic encoding (1) meaning (2) how tomake meaning out of something --- chunk, hierarchy, or connect to you210
9781387355if we can't remember a memory...1. change memory to suit us 2. fill in the blanks with logical story211
9781387356misinformation effectnot correct information212
9781387357imagination inflationimagine or visualize something that isn't real213
9781387358source amnesiawhat is the truth? (is it a dream, story, memory, etc.?)214
9781387359primingassociation (setting you up)215
9781387360contextenvironment helps with memory216
9781387361state-dependencyyou may remember something if you go back to the state you were in (go back to high)217
9781387362mood-congruencyemotion will bring back similar emotional memories218
9781387363forgetting curveforget after 5 days forget after 5 years219
9781387364the forgetting curve was created byEbbinghaus220
9781387365proactive interferenceold information interferes with the new221
9781387366retroactive interferencenew information interferes with the old222
9781387367children can't remember before age __3223
9781387368Loftusconnected to abuse cases/childhood224
9781387369prototypesgeneralize225
9781387370problem-solving (4)trial + error algorithms heuristic (representative + availability) insight - "AHA!"226
9781387371against problem-solvingfixation227
9781387372mental setwhat has worked in the past228
9781387373functional fixednessonly way to do this is with this229
9781387374Chomsky (nature or nurture?)"born with language" (nature)230
9781387375Skinner (nature or nurture?)language is learned (nurture)231
9781387376grammar is _________universal232
9781387377phonemessmallest sound unit233
9781387378morphemessmallest meaning unit234

AP Government Congress Vocabulary Flashcards

Terms : Hide Images
5948042341Bicameral LegislatureA lawmaking body made up of two chambers or parts.0
5948045364FilibusterAn attempt to defeat a bill in the Senate by talking indefinitely, thus preventing the Senate from taking action on the bill.1
5948056686Marginal DistrictsPolitical districts in which candidates elected to the House of Representatives win in close elections, typically by less than 55 percent of the vote.2
5948065209Safe DistrictsDistricts in which incumbents win by margins of 55 percent or more.3
5948073555Majority LeaderThe legislative leader elected by party members holding the majority of seats in the House or the Senate.4
5948078837Minority LeaderThe legislative leader elected by party members holding a minority of seats in the House or the Senate.5
5948085054WhipA senator or representative who helps the party leader stay informed about what party members are thinking.6
5948089753Party PolarizationA vote in which a majority of Democratic legislators oppose a majority of Republican legislators.7
5948097157CaucusAn association of Congress members created to advance a political ideology or a regional, ethnic, or economic interest.8
5948104126Standing CommitteesPermanently established legislative committees that consider and are responsible for legislation within a certain subject area.9
5948112002Select CommitteesCongressional committees appointed for a limited time and purpose.10
5948117262Joint CommitteesCommittees on which both senators and representatives serve.11
5948124660Conference CommitteesA joint committee appointed to resolve differences in the Senate and House versions of the same bill.12
5948132769Public BillA legislative bill that deals with matters of general concern.13
5948137465Private BillA legislative bill that deals only with specific, private, personal or local matters.14
5948147745Simple ResolutionAn expression of opinion either in the House or Senate to settle procedural matters in either body.15
5948154375Concurrent ResolutionAn expression of opinion without the force of law that requires the approval of both the House and Senate, but not the president16
5948258084Joint ResolutionA formal expression of congressional opinion that must be approved by both houses of Congress and by the president ; constitutional amendments need not be signed by the president17
5948348460Divided GovernmentOne party controls the White House and another party controls one or both houses of Congress18
5948354736Unified GovernmentThe same party controls the White House and both houses of Congress19
5948366565Earmarks"Hidden" congressional provisions that direct the federal government to fund specific projects or that exempt specific persons or groups from paying specific federal taxes or fees20
5948387353Multiple ReferralA congressional process whereby a bill may be referred to several important committees.21
5948391151Sequential ReferralA congressional process by which a Speaker may send a bill to a second committee after the first is finished acting.22
5948399515Discharge PetitionA device by which any member of the House, after a committee has had the bill for 30 days, may petition to have it brought to the floor.23
5948418716Closed RuleAn order from the House Rules Committee that sets a time limit on debate; forbids a bill from being amended on the floor.24
5948428209Open RuleAn order from the House Rules Committee that permits a hill to be amended on the floor.25
5948449670Restrictive RuleAn order from the House Rules Committee that permits certain kinds of amendments but not others to be made into a bill on the floor.26
5948467484QuorumThe minimum number of members who must be present for business to be conducted in Congress.27
5948473325Quorum CallA roll call in either house of Congress to see whether the minimum number of representatives required to conduct business is present.28
5948482644Cloture RuleA rule used by the Senate to end or limit debate.29
5948488361Double-TrackingA procedure to keep the Senate going during a filibuster in which the disputed bill is shelved temporarily so that the Senate can get on with other business.30
5948500138Voice VoteA congressional voting procedure in which members shout "yea" in approval or "nay" in disapproval, permitting members to vote quickly or anonymously on bills.31
5948509769Division VoteA congressional voting procedure in which members stand are counted.32
5948517738Teller VoteA congressional voting procedure in which members pass between two tellers, the "yeas" first and the "nays" second.33
5948524857Roll CallA congressional voting procedure that consists of members answering "yea" or "nay" to their names.34
5948544984Pork-Barrel LegislationLegislation that gives tangible benefits to constituents in several districts or states in the hope of winning their votes in return.35
5948555342Franking PrivilegeThe ability of members to mail letters to their constituents free of charge by substituting their facsimile signature for postage.36
5948592748RiderA provision added to a piece of legislation not germane to the bill's purpose.37
5948596622Christmas Tree BillWhen a bill has lots of riders.38

AP List 6 Flashcards

Terms : Hide Images
6157990368adulationHigh praise0
6157990369CensureTo criticize harshly, blame1
6157992612Dissemble(v) to present a false appearance; to disguise one's real intentions or character2
6157992613Dissimulation(n) The concealment of one's thoughts, feelings, or character; pretense3
6157992614DrollAmusing in an odd way4
6157998927Expectoratecough up and spit out mucus from the respiratory tract5
6157998928Palpateto examine by touch, especially for the purpose of diagnosing disease or illness6
6158002952PeremptoryLeaving no opportunity for denial or refusal7
6158005114PusillanimousCowardly, timid8
6158009074surfeitexcessive amount9

AP Biology- Chapter 22 Flashcards

Terms : Hide Images
5783346817Charles Darwin1) published "The Origin of Species" 2) based off observations made on round-the-world journey as naturalist on H.M.S. Beagle 3) conclusions: current species are descendants of ancient species0
5783346818Evolutiondescent with modification; change over time; both pattern and process1
5783346819Aristotle1) Greek philosopher 2) "Species are fixed" 3) Scala naturae2
5783346820Carolus Linnaeus1) creationist 2) Adaptations= evidence of design 3) taxomy= classification of biological organisms3
5783346821Fossils1) groundwork for Darwin's ideas 2) remains or traces of organisms from the past 3) usually found in sedimentary rock= appears in layers (strata)4
5783346822James Hutton & Charles Lyell1) uniformitarianism= "earth has changed vis constant, slow processes" 2) influenced Darwin's thinking5
5783346823Jean-Baptist Lamarck1) "species change through use and disuse of body parts" 2) "aquired characteristics can be inherited" 3) not supported by evidence6
5783346824Thomas Malthus1) "Humans population would reach a maximum number" 2) "Controlled by famine, war, disease, etc." 3) Darwin applied this to other species7
5783346825Natural Selectioncause of adaptive evolution8
5783346826Artificial Selection1) Humans have modified other species by selecting and breeding animals with desired traits 2) Darwin experimented with pigeon breeding to test natural selection9
5783346827Darwin's two main ideas:1) descent with modification=all organisms are related through descent from an ancient common ancestor 2) explanation for life's unity and diversity10
5783346828Observation #1: Members of population often __________ _______ in their traits.greatly vary11
5783346829Observation #2: Traits are __________ from parents to offspring.inherited12
5783346830Observation #3: All species are capable of producing ______ offspring than environment can ___________.more; support13
5783346831Observation #4: Owing to lack of ______ or other resources, many of these offspring do not __________.food; survive14
5783346832Inference #1: Individuals whose parents give them _________ probability of surviving and _____________ in given environment tend to leave more ___________ than other individuals.higher; reproducing; offspring15
5783346833Inference #2: The _________ ability of individuals to survive and __________ will lead to the accumulation of ____________ traits in the population over _______________.unequal; reproduce; favorable; generation16
5783346834S.W.I.F.TS~ struggle for existence W~ Whale of a lot of offspring I~ Individual variation F~ Fittest survive T~ Transmission of offspring17
5783346835"Fit"ability to survive and reproduce in your particular environments18
5783346836"Adaptation"trait that makes you more fit for your particular environment19
5783346837____________ DO NOT evolve--> ____________ evolve over long periods of time.Individuals; populations20
5783346838Drug 3TCdesigned to interfere and cause errors in the manufacture of DNA from the virus21
5783346839Rapid adaptation of bacteria= ?challenge to our society22
5783346840Fossil Record provides evidence of:1) extinction of species 2) origins of new groups 3) changes within groups over time23
5783346841Homologysimilarity resulting from common ancestry24
5783346842Homologous structuresanatomical structures that function on a basic plan due to common ancestry; have differentiated to fit different function; verbrate25
5783346843Comparative Embryologyreveals anatomical homologies not visible in adult26
5783346844Vestigial Structure1) remnants of features that served important homologies in organism's ancestors 2) have lost or reduced function27
5783346845Phylogenetic trees (AKA evolutionary trees)1) show hypothesis of evolutionary relationships bet. different organismal groups 2) use many different types of data: anatomical differences & DNA sequence data28
5783346846Convergent Evolution1) evolution of similar (analogous) features in distantly related groups 2) happen when groups independently adapt to similar environments in similar ways 3) does not provide ancestry29
5783346847Biogeographygeographic distribution of species (living and extinct)30
5783346848Islandsmany species that are often closely related to species on the nearest mainland or island31
5783346849Pangeasingle large continent formerly existing on Earth; separated by continental drift32

AP Biology Chapter 20 Flashcards

Terms : Hide Images
4987705921Phylogeny- The evolutionary history of a species or group of species.0
4987705922Taxonomy- The classification and naming or organisms.1
4987705923Binomial Nomenclature- 2 part scientific naming format introduced by Carlos Linnaeus - 1st part- genus to which the species belongs. - 2nd part- specific epithet unique for each species. - Ex. Panthera pardus2
4987705924Linnaean System- Related genera. 1. Family 2. Order 3. Class 4. Phyla 5. Kingdom 6. Domain3
4987705925Phylogenetic tree- Branching diagram that represents the evolutionary history of a group of organisms. - Evolutionary relationships. - Has *branch points* that indicate the divergence of 2 evolutionary lineages from a common ancestor. - Shows patterns of descent. - Sequence of branching does not indicate the absolute ages of the particular species. - You cannot assume that a taxon evolved from the taxon next to it.4
4987705926Sister taxa- Groups of organisms that share an immediate common ancestor.5
4987705927Homologies- Phenotypic and genetic similarities due to shared ancestry. - Organisms with similar morphologies and DNA sequences are more likely to be related, although this is not always the case. - More elements similar in two complex structures- organisms might be homologous.6
4987705928Analogy- Similarity due to convergent evolution. - Ex. Bat's wings and bird's wings are analogous.7
4987705929Convergent Evolution- Occurs when similar environmental pressures and natural selection produce similar (analogous) adaptations in organisms from different evolutionary lineages.8
4987705930Homoplasies- Analogous structures that arose independently.9
4987705931Cladistics- Approach to systematics where common ancestry is the primary criterion used to classify organisms. - Organisms are grouped into clades10
4987705932Clades- Includes an ancestral species and all of its descendants. - Nested within larger clades.11
4987705933Monophyletic- A taxon that forms a clade since it consists of an ancestral species and all of its descendants.12
4987705934Paraphyletic- A group that consists of an ancestral species and some, but not all, of its descendants. - Most recent common ancestor of all members of the group is part of the group.13
4987705935Polyphyletic- A group which includes taxa with different ancestors. - Most recent common ancestor is not part of the group.14
4987705936Shared ancestral character- A character that originated in an ancestor of the taxon. - Ex. Backbone of mammals (predates the branching of mammals from other vertebrates)15
4987705937Shared derived character- An evolutionary novelty unique to a clade. - Ex. Hair (not found in all mammals)16
4987705938Outgroup- Used when inferring phylogenies - A species or group of species from an evolutionary lineage that is known to have diverged before the lineage that includes the species were are studying. - Can be determined by morphology, paleontology, embryonic development and gene sequences.17
4987705939Ingroup- Used when inferring phylogenies - The species that is being studied.18
4987705940Maximum parsimony- Principle that says one should first investigate the simplest explanation that is consistent with the facts when finding the most accurate phylogenetic tree. - Trees base don morphology → most parsimonious tree requires the fewest evolutionary events. - Based on DNA- most parsimonious tree requires fewest base changes.19
4987705941Molecular Clocks- An approach for measuring the absolute time of evolutionary change based on the observation that some genes and other regions of genomes appear to evolve at constant rates. - # of nucleotide substitutions in related genes is proportional to the time that has elapsed since the genes branched from their common ancestor. - Clock speed- many mutations are neither beneficial nor detrimental.20
4987705942From 2 Kingdoms to 3 Domains- Taxonomists once classified all species into 2 kingdoms: plants and animals. - 5 kingdoms recognized later: monera, protista, plantae, fungi, and animalia. - Prokaryotes separated from eukaryotes in Monera. - Problem: differences between prokaryotes can be drastic. - New 3 domain system: Bacteria, archaea and eukarya. - Bacteria: consists of prokaryotes - Archaea: consists of diverse group of prokaryotes - Eukarya: organisms with a nuclei.21

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