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Biology 101 chapter 1 Flashcards

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3077231532Biologythe scientific study of life0
3076211423Levels of biological organizationBiosphere, Ecosystem, Community, Population, Organism, Organ System, Organ, Tissue, Cell, Molecule, Atom1
3077117213Characteristics of Living OrganismsAre organized Acquire materials and energy Reproduce Respond to stimuli Are homeostatic Grow and develop Have the capacity to adapt2
3077139772A cell is ...the smallest unit of life.3
3077142868A tissue is ...a group of similar cells that perform a particular function.4
3077145126An organ is ...several tissues joined together.5
3077149287An organ system is ...a group of organs working together .6
3077156102Homeostasis"staying the same" it refers to the requirement that organisms maintain a relatively constant internal environment (ie temperature or pH balance7
3077162956Natural SelectionThe differential reproductive success of adapted individual. It results in changes of characteristics of a population over time8
3077167753EvolutionThe change in frequency of traits in populations and species9
3077101974TaxonomyA classification system for life.10
3076189583Levels of ClassificationDomain, Kingdom, Phylum, Class, Order, Family, Genus, Species11
3076204130Three DomainsArchaea, Bacteria, & Eukarya12
3076198167Four Kingdoms of EukaryotesProtista, Fungi, Plantae, & Animalia13
3077182827ArchaeaLive in extreme environments, ie too little oxygen, too salty, too hot, or too acidic for most other organisms14
3077097682Homo SapiensThe binomial taxonomic designation for human beings15
3077194038Classification of HumansEukarya, Animalia, Chordata, Mammalia, Primates, Hominidae, Homo, Sapiens16
3077205925BiosphereThe zone of air, land, and water at the surface of the Earth where living organisms are found17
3077211744EcosystemCommunity interact among themselves & with the physical environment (soil, atmosphere, etc.)18
3077207841CommunityAll the different populations in the same area19
3077209073PopulationAll the members of a species within a particular area20
3077215472Ecosystem characteristic: Chemical cyclingChemicals move from one species to another21
3077216576Ecosystem characteristic: Energy flowEnergy flows from the sun, through plants, through the food chain22
3077228170BiodiversityEncompasses: ~Total number of species ~The variability in their genes ~The ecosystems in which they live23
3076225152Scientific MethodObservation, Hypothesis, Experiment/Observation, Conclusion, Scientific Theory24
3077238965Inductive reasoningUsing creative thinking to combine isolated facts into a cohesive whole. Specific instances inform a general theory.25
3077243825Deductive reasoningHow scientists test a hypothesis; involves "if, then" logic. The process of reasoning from a general premises to reach a logically certain specific conclusion.26
3077267310Independent VariableFactor of the experiment being tested. Also called the Experimental Variable27
3077271352Dependent VariableResult or change that occurs due to the experimental variable. Also called the Response Variable28

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