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Definition
| assigning organisms to categories (purportedly) based on common ancestry |
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Term
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Definition
| gradual shift in gene (allele) frequencies between neighboring populations |
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Term
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Definition
| lineage or branch of genetic tree marked by one or more specific genetic mutations |
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Term
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Definition
| "natural sunscreen" produced by skin cells responsible for pigmentation |
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Term
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Definition
| Zone between 23 degrees north (Tropic of Cancer) and 23 degrees south (Tropic of Capricorn) of the equator |
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Term
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Definition
| vitamin D deficiency marked by bone deformation |
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Term
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Definition
| average nose length increases in cold areas |
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Term
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Definition
| larger bodies are found in colder areas and smaller bodies in warmer ones |
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Term
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Definition
| protruding body parts are bigger in warmer areas |
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Term
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Definition
| adaptive biological changes during an individual's lifetime |
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