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Chap. 13- Evolution

TermDefinition
population all of the individuals of a species that live in a specific geographical area and can breed
natural selection In a particular environment, some individuals of a population or species are better suited to survive and have more offspring (differential rates of reproduction)
adaptation an inherited trait that has become common in a population because the trait provides a selective advantage
reproductive isolation the condition in which two populations of the same species do not breed with one another because of geographical separation, difference in mating periods or other barriers
Charles Darwin published evidence that species evolved, and explained how evolution occurs
Galapagos Islands islands off the South American coast where Darwin first observed evolution
Theory of evolution 1. Inherited variation exists within the genes of a population 2. Natural selection 3. Those traits tend to spread in that population 4. There is evidence from fossils that living species evolved from organisms that are extinct
paleontologist scientists who study fossils
speciation the process by which a new species is formed
evolution change over time
Created by: jyoung271
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