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Chapter 15
Section 1: History of Evolutionary Thought
| Term | Definition |
|---|---|
| Evolution | The development of a new type of organisms from preexisting types of organisms over time |
| Strata | Rock Layers |
| Natural Selection | A theory formed by Darwin, that explains changes in organisms over time |
| Adaptation | A trait that makes an individual successful in its environment |
| Fitness | A measure of an individuals hereditary contribution to the next generation |