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9 Cards in this Set
- Front
- Back
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Evolution
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gradual change of allele frequencies found in a population
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Organic Evolution
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continual change that occurs in species over time
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Geologic Evolution
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continual change that the earth undergoes
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Index Fossil
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fossils that permit the relative dating of rocks within a narrow time span
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Analogous Structures
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structures found in different types of organisms that are similar in function or outward appearance but dissimilar in basic structure
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Homologous Structures
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structures found in different kinds of organisms that have the same basic arrangeent of parts and same patterns of embryological developement
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Correlation
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process in whihc geologists determine the relative ages of rock layers and fossils in a local region
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Extinct
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the end of a species when the last individual of that species has died
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Vestigial Structures
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nonfuctional structures in an organism that are remainders of structures that were fuctional in some ancestral form of an organism
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