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8 Cards in this Set
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- Back
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Fossils
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Any remains of life from an earlier time
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Relative Dating
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Estimating the age of fossils by the layer of rock in which they are located
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Radioactive Dating
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Measure how much a radioactive element has changed to determine age
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Homologous Structures
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Body parts similar in origin and structure
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Vestigial Structures
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A body part reduced in size that does not seem to have a function
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Embryology
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The compartitive study of embryos
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Extinction
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The dying out of a species
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Endangered Species
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A species with few individuals and in danger of becoming extinct.
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