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Vestigial organ


vestigial organ
A type of homologous structure that is rudimentary and of marginal or no use to the organism.
viable ...
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vestigial organ
any organ over the course of evolution had become reduced in function and usually in size.
vibrissa (plural, vibrissae)
Any of the stiff sensitive hairs found around the mouths of mammals; whiskers.
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appendix Blind sac at the end of the large intestine that usually ruptures during final exams; a vestigial organ in humans.
Archaea Proposed, but not widely accepted, sixth taxonomic kingdom that would include the archaebacteria.
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Vertebrate limbs are a common example of such homologous structures. A vestigial organ or structure may exist with little or no purpose in one organism, though they have a clear purpose in others.
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