Term
| What types of items are fossilized |
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Definition
| bones, shells, traces of organisms, footprints, trapped insects |
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Term
| Are acquired traits considered evidence of evolution? |
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Definition
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Term
| Where did Darwin conduct much of his research for evolution? |
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Definition
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Term
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Definition
| Change in a species over time |
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Term
| Why does evolution happen? |
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Definition
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Term
| What is natural selection? |
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Definition
| Organisms well suited to their environment reproduce more successfully than those less well suited |
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Term
| What is needed for natural selection to work? |
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Definition
| Genetic variation, competition for limited resources |
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Term
| What affect do different habitats have on populations of the same species? |
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Definition
| they become increasingly different |
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Term
| Homologous structures in animals lead scientists to believe they shared... |
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Definition
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Term
| Forearm bones in mammals are an example of what? |
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Definition
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Term
| What is a vestigial structure? |
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Definition
| structures that no longer serve an important function |
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Term
| The appendix is an example of what type of structure for the human? |
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Definition
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Term
| What is convergent evolution? |
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Definition
| Structures that are similar, but evolved independently (not from a common ancestor) |
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Term
| What are examples of convergent evolution? |
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Definition
| wings of birds and butterflies, shark and dolphin morphology |
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Term
| What are homologous blood proteins used as evidence for? |
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Definition
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Term
| When similar organisms, such as the bobcat and lynx, accumulate differences over time, what is this called? |
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Definition
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Term
| What is it called when two species change in response to each other? |
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Definition
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Term
| What are two examples of coevolution? |
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Definition
| flower/pollinator, predator/prey |
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Term
| If organisms have similar DNA sequences, what is that evidence of? |
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Definition
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Term
| What creates new alleles by changing DNA? |
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Definition
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Term
| Why does a peacock have bright showy feathers? |
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Definition
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Term
| What are three ways to alter gene frequencies in a population? |
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Definition
| bottleneck effect, founder effect, genetic drift |
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Term
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Definition
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Term
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Definition
| Formation of a new species |
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