10.4 Biology Study Guide-Blackwell
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Evidence of Evolution...
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fossils, geography, embryology, anatomy
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Vestigial structures seem to lack any useful function, or are at least no longer used for their original purpose. 3 examples are...
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wings of ostriches, the human appendix, snakes' tiny pelvic bones and strumplike limbs
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Feature that is similar in stucture in different organisms but has different functions
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homologous structure
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Feature that peforms a similar function in different organisms but is not similar in origin; is not evidence of a common factor
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analogous structure
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Remnant of an organ or structure that had a function in an early ancestor
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vestigial structure
