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Evolutionary History
| Term | Definition |
|---|---|
| Paleontologist | a scientists who studies fossils in order to understand the ancient history of like on earth |
| species | a group of organism |
| body structure | a part of an organism (for example a leg) |
| shared structure | a body structure in to or more species that features the same parts |
| Evolution | the process by which species adapt to an environmental changes over a very long time |
| descendant species | a more recent species that evolved from an ancestor population |
| common ancestor population | an older population from which two or more newer species descended |
| stability | when something stays mostly the same over time |
| speciation | the process by which one population evolves into two or more different species |
| related | sharing a common ancestor population. |