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Vocab 15.1
Terms for chapter 15 section 1
| Question | Answer |
|---|---|
| evolution | a heritable change in the characteristics within a population from one generation to the next; the development of new types of organisms from preexisting types of organisms over time |
| strata | layers of rock |
| natural selection | the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adpated individuals do; a theory to explain the mechanism of evolution |
| adaptation | the process of becoming adapted to an environment; an anatomical, physiological, or behavioral trait that improves an organism's ability to survive and reproduce |
| fitness | in evolutionary theory, a measure of an individual's hereditary contribution to the next generation |