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Biology Ch 15.1
Ch.15 vocab
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; and 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 |