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29 Cards in this Set
- Front
- Back
homeostasis
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relatively constant internal conditions that are different than their enviroment
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atoms
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fundamental elements of matter
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molecules
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cluster of atoms joined together
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organelles
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molecules assembled into tiny structures
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cells
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membrane-bounded units (contains organelles)
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tissues
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groups of similar cells that act as a structural and functional unit
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organs
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body structures composed of several different tissues that act as a structural and functional unit
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organ systems
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groups of organs
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population
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group of organisms of the same species living in the same place
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species
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all populations of a particular kind of organism
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biological community
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consists of all populations of different species living together in one place
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ecosystem (ecological system)
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biological community and the physical habitat within which it lives
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emergent properties
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novel properties resulted from way the components interact
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deductive reasoning
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applies general principles to predict specific results
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inductive reasoning
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uses specific observations to construct general scientific principles
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hypothesis
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a suggested explanation that accounts for the observations
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experiment
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the test of a hpothesis
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variable
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a facgtor that influences an outcome, observation, or process
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test experiment
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one variable is altered in a known way to test a particular hypothesis
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control experiment
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all variables are unaltered
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reductionism
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reduces a complex system into its working parts
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theory
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proposed explanation for some natural phenomenom; body of interconnected concepts, supported by scientific reasoning, and experimental evidence, that explains the facts in some area of study
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evolution
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genetic change in a population of organisms
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artificial selection
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change in the genetic structure of populations due to selective breeding by humans
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natural selection
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the differential reproduction of genotypes, caused by factors in the enviroment, leads to evolutionary change
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homologous
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have the same evolutionary origin, but differ in structure and function
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analogous
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have similar function, but different evolutionary origins
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dexoyribonucleic acid (DNA)
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encodes information that specifies what a cell is like
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gene
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specific sequence of several hundred to many thousand nucleotides; a discrete unit of information
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