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4b
vocabulary
| Term | Definition |
|---|---|
| Natural selection | variations in a population increase some individuals likelihood of surviving and reproducing in a changing environment. |
| Speciation | separated populations that remain separated can evolve through mutations to become new species. |
| Homologous structures | same structure and different function (evidence of common ancestor) |
| Analogous structures | different structure and same function |
| Embryological structure | embryos of different structures to see if a common ancestor is shared |
| Vestigial structure | structures that have no function but believed to have a function a long time ago |