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Process of evolution
| Change | Dynamic |
| Heritable trait | allele frequency of gene pool |
| Population | Group of species |
| Time | Time that has passed, longer than one generation |
| Descent with modification | Change in heritable traits of a population over time |
| Aristotle | No extinction, no evolution |
| Cuvier | C for catastrophic |
| Hutton and Lyell | Gradualism |
| Lamarck | -Use and disuse -Flaw: Change in organism in a lifetime |
| Plausible Theory: Descent with Modification | -All species are related -# of species change based on env. |
| Plausible Theory: Natural selection | Change happens slowly & Continually |
| Hypothesis | Educated guess |
| Theory | -Explains why or how it happens -Based on inference |
| Law | -Describes what happens -Based on observation |