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19 Cards in this Set
- Front
- Back
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Evolution |
The development of new types or organisms from preexisting types of organisms over time |
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Strata |
Rock layers |
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Natural Selection |
Theory of mechanism for descent with modification that changes population |
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Adaptation |
Trait that makes an individual successful in its environment |
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Fitness |
Measure of an individual's heredity contribution to the next generation |
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Fossil |
Remains of an organism that died long ago |
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Superpostion |
Principle that the bottom layer of rock contains older fossils |
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Relative Age |
Age in comparison to another fossil |
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Absolute Age |
The actual age of a fossil |
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Biogeography |
The study of the locations of organisms around the world. |
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Homologous Structure |
Anatomical structures that occur in different species and that originated by heredity from a structure in the most recent common ancestor of the species. |
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Analogous Structure |
Have closely related functions but do not derive from the same ancestral structure. |
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Vestigial Structure |
Structures that seem to serve no purpose |
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Phylogeyn |
The relationship by ancestry among groups of organisms |
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Convergent Evolution |
the process by which different species evolve similar traits |
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Divergent Evolution |
A process in which the descendants of a single ancestor diversify into species that each fit different parts of the environment |
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Adaptive Radiation |
Patter of divergence in which a population fills many parts of the environment |
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Artificial Selection |
Process in which a human breeder chooses individuals that will parent the next generation |
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Coevolution |
When two or more species have evolved to survive |
