Wednesday, August 29, 2012

Homologous structures


Homologous structures are structures in different species that are similar. My hand and my cat's paw are similar structures.
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1 comment:

  1. BrysonMAugust 30, 2012 at 9:56 AM

    Sorry, but I think you have a better definition for Vestigial structures, which are similar structures in animals without a common ancestor. Homologous structures are caused by a shared common ancestor.

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