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Chapter 18
Study Guide
| Question | Answer |
|---|---|
| Adaption | heritable trait that helps an organism survive and reproduce in its enviroment |
| Convergent evolution | different species evolve a similar phenotype from independent pathways |
| Divergent evolution | species evolve in diverse direction from a common starting point |
| Homologous structure | structure in diverse organism that share the same basic forms - evidence of shared ancestry |
| Natural selection | three principle is characteristics are inherited through DNA, more offspring are born then survive competition for resources, there is variation among offspring |
| Variation | genetic diversity |
| Vestigial structure | remnants of structure that are inherited from ancestors, and no apparent function |