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Biology Chapter 15.1

TermDefinition
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.
Created by: DragonT20
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