Biology

Question

What is a vestigial structure?

• A. A structure that has no use in the organism

• B. A structure with similar shape but a different use

• c. A structure that contains isotopes

• D. A structure that is only in index fossils

Answer

A. A structure that has no use in the organism.

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A vestigial structure is a structure that has lost its original function through evolution. It may have had a function in an ancestor, but in...