Homologous Structures

Homologous structures are characteristics of different species that were inherited by a common ancestor. Although they are inherited by a common ancestor, they may have differences in size and function like the bones in a human arm compared to that of a whale’s fin.  The two structures are very different in size and have completely separate functions, one being swimming and the other carrying/holding/touching/etc. Other homologous structures include a cat’s limb, a human arm, a bat’s wing, etc.
Homologous structures are characteristics of different species that were inherited by a common ancestor. Although they are inherited by a common ancestor, they may have differences in size and function like the bones in a human arm compared to that of a whale’s fin. The two structures are very different in size and have completely separate functions, one being swimming and the other carrying/holding/touching/etc. Other homologous structures include a cat’s limb, a human arm, a bat’s wing, etc.
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