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8 Cards in this Set
- Front
- Back
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Evolution
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change in species over time ; process of biological change by which descendants come to differ from their ancestors.
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species
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group of organisms so similar to one another that they can breed and produce fertile offspring.
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fossil
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trace of an organism from the past.
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castastrophism
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theory that states that natural disasters such as floods and volcanic eruptions shaped Earth's landforms and caused extinction of some species.
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gradualism
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principle that states that the changes in landforms result from slow changes over a long period of time.
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uniformitarianism
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theory that states that the geologic processes that shape Earth are uniform through time.
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variation
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differences in physical traits of an individual from the group to which it begins
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adaptation
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inherited trait that is selected for over time because it allows organisms to better survive in their environment
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