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Biology Chapter 15.1
Term | Definition |
---|---|
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 adapted 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. |