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13 Cards in this Set
- Front
- Back
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adapatation
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inherited characteristics that increase the animals chance of survival
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artificial selection
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selection by humans for breeding of useful traits from the natural variation among different organisms
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common descent
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idea that all living things were derived from a common ancestor
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descent with modifications
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idea that each living species has descenders with changes,over time
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evolution
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change in the kind of organism over time
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fitness
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ability of an organism to servive and reproduce
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fossil
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preserved remains/evidence of an ancient organism.
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homologous structure
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structures that have different mature forms in different mature forms in different organisms but develop from the same tissue
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natural secection
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when animals are better suited for their environments then others
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survival of the fittest
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best suited. and also servive and reproduce more sucessfully
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struggle for existence
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members of each species compete for everything
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theory
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testable, and well supported explanation
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vestigial organs
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structures that arent really needed
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