Biology: Chapter 151 Word Scramble
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Term | Definition |
Evolution | the development of new types of organisms from preexisting types of organisms over time |
Strata | rock layers |
Natural Selection | the process whereby organisms better adapted to their environment tend to survive and produce more offspring; the theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution |
Adaptation | a trait that makes an individual successful in its environment, such as thick fur in cold climates |
Fitness | a measure of an individual's hereditary contribution to the next generation |
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