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Definition
| the solidfied remains or imprints of one living organisms are found in these layers |
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Definition
| the process by which two populations of the same species become so different that they can no longer interbreed |
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Definition
| the period between the birth of one generation and the birth of the next generation |
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Definition
| group of organisms that can mate with one another to produce fertile offspring |
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Definition
| the process in which organisms with faverable traits survive and reproduce@ a higher rate than organisms without faverable trait. |
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Definition
| the remnant of a once usful anatomical structure. |
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Definition
| characteristic that helps a organism survive and reproduce in its environment |
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Definition
| historical sequence of life. (produces evidence about orderin which evelutionary changes have occured. |
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Definition
| a distinguesting quality that can be passed from generation to another. |
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Definition
| the process by which populations accomulate inerited changes over time |
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Definition
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Definition
| the breeding of organisms that have a certain desired trait |
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