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Organisms that are the best adapted to their environment are the ones that will live long enough to reproduce and pass on their favorable adaptations
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The process by which a species adapts to its environment over a relatively short period of time
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The process by which species give rise to other species over a long period of time
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The complete body of fossils that shows how species and ecosystems change over time
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The evolutionary termination of a species caused by the failure to reproduce and the death of all remaining members of the species
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___ structures have different mature forms, but developed from the same structure in a common ancestor
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The number of individuals of the same species living in the same area at the same time
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A trait that increases the chances that an organism will survive and reproduce
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___ structures are nonfunctioning body parts left over from similar, useful structures in an organism’s ancestor
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Natural differences between individuals in a population
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Genetic change in a population of a species over time
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The most specific classification of living things; organisms that are more closely related to each other than to anything else living
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Changes in a DNA sequence that affect genetic information; the source of all variation in living things
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A well-supported and useful scientific explanation that ties together many hypotheses and observations
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A naturalist who proposed and provided scientific evidence that all species of life have evolved over time from common ancestors through the process of natural selection
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