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| Change in a kind of organism over time; |
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| A well-supported testable explanation of phenomena that have occurred in the natural world. |
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| Selection by humans for breeding of useful traits from the natural variation among different organisms. |
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| Competition among members of a species for food, living space, and the other necessities of life. |
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Definition
| Ability of an individual to survive and reproduce in its pacific environment. |
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| Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called natural selection |
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| Process by which individuals the are better suited to their environment survive ad reproduce most successfully; also called survival of the fittest. |
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| Descent with Modification |
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Definition
| Principle that each living species has descended. with changes, from other species over time. |
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| Principle that all living things were derived from common ancestors. |
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| Structures that have different mature forms in different organisms but develop from the same embryonic tissues. |
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| Organ that serves no useful function in an organism. |
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Definition
| Preserved remains or evidence of an ancient organism. |
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Definition
| Process by which individuals that are better suited to their environment survive and reproduce most successfully: also called survival of the fittest. |
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