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| Also known as adaptive trait of an organism. Occurs through natural selection and mutation of genes. |
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| The variety of life on planet Earth. |
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| The large, naturally occuring area of land with similar climate,plants and animals. |
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| A key to identify organisms based upon characteristics. |
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| The end of an organism where no more of it's kind live. ex. dinosaurs |
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| The change in structure of a gene. |
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| The process by which organisms that have traits that better allow them to survive continue to reproduce. |
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| Humans using breeding of specific plants or animals to obtain desired traits in the offspring. |
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| A change in an organism's environment. Can be either internal or external. |
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| The variety of traits within traits in a species. Ex. black, brown, white dogs. |
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