2335661227 | The biological form of an organism | Anatomy | | 0 |
2335661377 | The biological functions an organism performs | Physiology | | 1 |
2335661706 | 4 physical laws that govern certain traits of animals | 1. Strength
2. Diffusion rates
3. Movement
4. Heat exchange | | 2 |
2335662433 | Skeletons in relation to animals growing larger | Thicker skeletons are required to support more mass | | 3 |
2335664790 | 2 things nutrients are required for as animals grow larger | 1. More nutrients are needed to supply all tissues with proper levels
2. More nutrients are required to build the larger structures | | 4 |
2335665653 | Similar adaptations result in diverse organisms facing the same challenge; 2 separate species evolve to have a similar feature that didn't come from a common ancestor | Convergent evolution | | 5 |
2335666915 | What does an organism need to exchange with its environment? | Gases, nutrients, and waste products | | 6 |
2335667310 | How are gases, nutrients, and waste products exchanged on the single cell level? | They have to cross the plasma membrane | | 7 |
2335667573 | How fast can materials be exchanged? | Rate of exchange is proportional to the surface area of the cell; the amount of materials exchanged is proportional to the volume of the cell | | 8 |
2343859109 | ________ organisms have sufficient surface area to exchange materials with their environments | Single-celled | | 9 |
2343861920 | Some multi-cellular organisms have ________ to facilitate diffusion of materials | Thin body walls | | 10 |
2343864803 | Some organisms have most of their cells in ________ contact with the environment | Direct | | 11 |
2343866216 | Are all the cells in larger organisms in contact with the environment? | No | | 12 |
2343867298 | Larger organisms are composed of... | Compact masses of cells with complex internal organization | | 13 |
2343868348 | How are nutrients distributed in humans? Goats? Frogs? | A circulatory system | | 14 |
2343869627 | Adaptations allow of exchange of materials with the environment such as... | 1. Extensive branching or folded structures
2. Interstitial fluid
3. Systems of distribution within the organism | | 15 |
2343870945 | Fluid between cells allows of movement of materials into and out of cells | Interstitial fluid | | 16 |
2343872072 | 3 systems of distribution within the organism | 1. Digestive system
2. Circulatory system
3. Respiratory system | | 17 |
2343874272 | Job(s) of the digestive system | Food processing | | 18 |
2343876918 | Job(s) of the circulatory system | Internal distribution of materials | | 19 |
2343877753 | Job(s) of the respiratory system | Gas exchange | | 20 |
2343878743 | Job(s) of the immune and lymphatic system | Body defense | | 21 |
2343879592 | Job(s) of the excretory system | 1. Disposal of metabolic waste
2. Regulation of osmotic balance of blood | | 22 |
2343881351 | Job(s) of the endocrine system | 1. Coordination of body activities
2. Transmits hormones throughout the body via blood | | 23 |
2343883284 | Job(s) of the reproductive system | Reproduction/creating offspring | | 24 |
2343883296 | Job(s) of the nervous system | 1. Coordination of body activities
2. Detection of stimuli
3. Formulation of responses to stimuli | | 25 |
2343885288 | Job(s) of the integumentary system | 1. Protection against mechanical injury, infection, dehydration
2. Thermoregulation | | 26 |
2343887286 | Job(s) of the skeletal system | 1. Body support
2. Protection of internal organs | | 27 |
2343888702 | Job(s) of the muscular system | Locomotion and other movements | | 28 |
2343890434 | 4 main categories of tissues | 1. Epithelial
2. Connective
3. Muscle
4. Nervous | | 29 |
2343893114 | 1. Covers the outside of the body
2. Lines the organs and cavities within the body
3. Contains cells that are closely joined, to provide protection so things don't just enter/exit | Epithelial tissue | | 30 |
2343894238 | 3 shapes of epithelial cells | 1. Cubodial
2. Columnar
3. Squamous | | 31 |
2343897336 | 3 types of arrangement of epithelial cells | 1. Simple (a single layer)
2. Stratified (multiple tiers of cells)
3. Pseudostratified (a single layer of cells of varying lengths) | | 32 |
2343901546 | Side of epithelial tissue that faces the exterior | Apical surface | | 33 |
2343902375 | Side of epithelial tissue that faces the interior | Basal surface | | 34 |
2343903767 | The ________ side of epithelial cells either faces the air/your clothes or the inside of your digestive system | Apical | | 35 |
2343903774 | The ________ side of epithelial cells faces your muscles or your organs | Basal | | 36 |
2343905934 | Binds and supports other tissues | Connective tissue | | 37 |
2343907104 | Contains sparsely packed cells scattered throughout an extra cellular matrix | Connective tissue | | 38 |
2343908061 | 6 major types of connective tissue | 1. Loose
2. Fibrous
3. Bone
4. Adipose
5. Blood
6. Cartilage | | 39 |
2343910497 | 1. Binds epithelia to the underlying tissues
2. Holds organs in place | Loose connective tissue | | 40 |
2343911985 | In tendons, attaches muscles to bones; in ligaments, connects the bones together at your joints | Fibrous connective tissue | | 41 |
2343913150 | Mineralized; forms skeleton | Bone | | 42 |
2343914067 | 1. Fat
2. Stores energy
3. Provides insulation | Adipose tissue | | 43 |
2343915247 | 1. Composed of blood cells, plasma, and cell fragments
2. Connects parts of the body with nutrients and oxygen
3. Removes waste
4. Transports hormones, etc. | Blood | | 44 |
2343916255 | Strong and flexible support material; between bones | Cartilage | | 45 |
2343917338 | 3 types of connective tissue fibers | 1. Collagenous
2. Reticular
3. Elastic | | 46 |
2343918873 | Fibers that provide strength and flexibility | Collagenous | | 47 |
2343919883 | Fibers that join connective tissue to adjacent tissue | Reticular | | 48 |
2343920648 | Fibers that stretch and "snap" back to their original length | Elastic | | 49 |
2343922358 | 2 types of cells within connective tissue | 1. Fibroblasts
2. Macrophages | | 50 |
2343923570 | 1. Secrete the proteins in the extracellular matrix
2. Make fiber | Fibroblasts | | 51 |
2343924334 | Involved in the immune system | Macrophages | | 52 |
2343925501 | Responsible for almost all types of body movement | Muscle tissue | | 53 |
2343926563 | Filaments that enable the muscles to contract | Actin and myosin | | 54 |
2343927238 | 3 muscle types | 1. Skeletal/striated
2. Smooth
3. Cardiac | | 55 |
2343928194 | Muscle type responsible for voluntary movement | Skeletal/striated | | 56 |
2343929270 | Muscle type responsible for involuntary movement | Smooth | | 57 |
2343930310 | Muscle type responsible for contraction of the heart | Cardiac | | 58 |
2343931151 | Tissue that receives, processes, and transmits information | Nervous tissue | | 59 |
2343932469 | 2 cell types found in nervous tissue | Neurons and glial cells | | 60 |
2343933735 | Coordination and control depend on the ________ system and the ________ system | Endocrine; nervous | | 61 |
2343938436 | Hormones are ________ but ________ | Slow acting; long lasting | | 62 |
2343940331 | Uses internal controls to change their internal environment when the external environment fluctuates; ex. warm blooded organism | Regulator | | 63 |
2343940343 | Allows their internal environment to fluctuate with the external environment; ex. cold blooded organism | Conformer | | 64 |
2343943715 | The steady state physical condition of the body; in humans: pH, temperature, glucose concentrations kept as constant levels | Homeostasis | | 65 |
2343944428 | ________ feedback helps return a variable back to normal/homeostatic range | Negative | | 66 |
2343944429 | ________ feedback would amplify the stimulus and therefore would not typically be able to restore homeostasis | Positive | | 67 |
2343946120 | If a factor fluctuates above or below a ________, the body responds to return the factor to the set point | Set point | | 68 |
2343948548 | 1. Moving above or below a set point serves as a ________
2. The stimulus is detected by a ________
3. The sensor triggers a ________
4. ________ is restored | Stimulus; sensor; response; homeostasis | | 69 |
2343950102 | Set points can vary with... | Age or cyclic variation | | 70 |
2343952368 | Physiological changes that occur ~24 hours even in the absence of external cues | Circadian rhythm | | 71 |
2343953658 | Sometimes, homeostasis can adjust to changes in the external environment | Acclimatization | | 72 |
2343954530 | Process by which animals maintain an internal temperature within a tolerable range | Thermoregulation | | 73 |
2343955282 | What does thermoregulation involve? | Form, function, and behavior | | 74 |
2343957110 | 1. Generate heat through metabolism
2. Maintain a stable body temperature even with drastic environmental changes
3. More energetically expensive than ectothermy
4. Birds and mammals | Endothermic animals | | 75 |
2343958186 | 1. Gain heat from external sources
2. Tolerate greater variation in internal temperature
3. Most invertebrates, fishes, amphibians, non-avian reptiles | Ectothermic animals | | 76 |
2343959302 | Body temperature varies with its environment | Poikilotherm | | 77 |
2343959930 | Body temperature is relatively constant | Homeotherm | | 78 |
2343961091 | 4 ways animals balance heat loss and gain | 1. Radiation of heat
2. Evaporative cooling
3. Convection
4. Conduction | | 79 |
2343963085 | Mammals often use the ________ system to regulate heat | Integumentary | | 80 |
2343963086 | 5 adaptations that help animals thermoregulate | 1. Insulation
2. Circulatory adaptations
3. Cooling by evaporative heat loss
4. Behavioral responses
5. Adjusting metabolic heat production | | 81 |
2343966184 | Blood flow increases, heat loss increases | Vasodilation | | 82 |
2343966958 | Blood flow decreases, heat loss decreases | Vasoconstriction | | 83 |
2343968826 | Transfer heat between fluids flowing in opposite directions and thereby reduce heat loss | Countercurrent exchange | | 84 |
2343970586 | Evaporation of water from the skin cools the skin; sweating or bathing moistens skin to allow for cooling; panting increases the cooling effect | Evaporative cooling | | 85 |
2343973548 | Adjustment of metabolic heat production to maintain body temperature; increased by muscle activity such as moving of shivering | Thermogenesis | | 86 |
2343974173 | Hormones cause the mitochondria to increase metabolic activity | Nonshivering thermogenesis | | 87 |
2343976184 | Birds and mammals can vary their ________ to adjust to seasonal temperatures | Insulation | | 88 |
2343978261 | What brain region controls thermoregulation in mammals? | Hypothalamus | | 89 |
2343980138 | 3 things energy requirements are related to | 1. Size
2. Activity level
3. Environment | | 90 |
2343981376 | What do energy requirements determine? | How much food an animal needs relative to the animal's size, activity level, and environment | | 91 |
2343983459 | Harness light energy to build energy-rich molecules | Autotrophs | | 92 |
2343984182 | Harvest chemical energy from food | Heterotrophs | | 93 |
2343985470 | Energy containing molecules from food are usually used to make ________ | ATP | | 94 |
2343985471 | Once an organism meets the needs it has to stay alive it can use the remaining energy from food molecules to do ________ | Biosynthesis | | 95 |
2343988698 | 4 parts of biosynthesis | 1. Body growth
2. Body repair
3. Synthesis of storage materials like fat
4. Production of gametes | | 96 |
2343990601 | The amount of energy an animals uses in a unit of time | Metabolic rate | | 97 |
2343991715 | 3 ways metabolic rate be determined by | 1. Heat loss
2. Amount of oxygen consumed or carbon dioxide lost
3. Measuring amount of energy consumed through food and the energy lost in waste products | | 98 |
2343992996 | The metabolic rate of an endotherm at rest at a "comfortable" temperature | Basal metabolic rate (BMR) | | 99 |
2343995019 | The metabolic rate of an ectotherm at rest at a specific temperature | Standard metabolic rate (SMR) | | 100 |
2343996270 | Ectotherms have much (lower/higher) metabolic rates than endotherms of a comparable size | Lower | | 101 |
2343997761 | 6 factors that can affect metabolic rate | 1. Size
2. Age
3. Sex
4. Activity level
5. Temperature
6. Nutrition | | 102 |
2343998781 | Metabolic rate is proportional to ________ | Body mass | | 103 |
2344001525 | An animal has the highest metabolic rate during peak activity | Maximum metabolic rate | | 104 |
2344003208 | 4 things that the portion of an animals energy that is devoted to activity depends on | 1. Environment
2. Behavior
3. Size
4. Thermoregulation | | 105 |
2344004222 | A physiological state in which activity is low and metabolism decreases | Torpor | | 106 |
2344004864 | 3 types of torpor | 1. Hibernation
2. Estivation
3. Daily | | 107 |