| Scientists believe that vestigial structures are the remains of organs that were well-developed in ancestors of present-day organisms. |
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| In females, the Wolffian ducts and mesonephric tubules degenerate but are represented as vestigial structures. |
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| Just as the members of a family of humans may have some defect such as a missing tooth, the members of a group of species may all share vestigial structures and genes. |
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| These might include but are not necessarily limited to vestigial structures. |
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| During evolution, some structures may lose their original function and become vestigial structures. |
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| Examples of vestigial structures in humans include wisdom teeth, the coccyx, the vermiform appendix, and other behavioural vestiges such as goose bumps and primitive reflexes. |
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| Vestigial structures are often homologous to structures that function normally in other species. |
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| Vestigial structures offer evidence to support the theory that many animals evolved from common ancestors. |
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| Vestigial structures can be explained from the evolutionary point of view, that they were once well-developed and functional, but subsequently, have lost their utility due to changed circumstances. |
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