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9 Cards in this Set
- Front
- Back
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evolution |
cumulative change in heritable traits of a population over time |
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population |
group of organisms living in the same geographic area that are capable of interbreeding |
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overproduction |
produces more offspring than the environment can support |
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heritability |
traits pass down from parents to offspring |
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Endosymbiosis theory |
1) start with 2 independent bacteria 2) one bacterium engulfs the other 3) one bacterium lives inside the other 4) both bacteria benefit from the arrangement 5) internal bacteria are passed on from generation to generation |
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species |
a group of individuals that actually or potentially interbreed in nature |
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Speciation |
if a species becomes so different that interbreeding is no longer possible and they become 2 species |
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Gradualism |
idea that large changes are actually the culmination of very small changes that build up over time (ex. fossil record and continuous variation) |
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punctuated equilibrium |
we cannot see changes in a species so there must be very long periods of no changes of a species. (ex. fossil record) |
