Use the drop-down menus to complete the sentences. Tetra fish that live in caves are blind and have small eyes that do not work. This is an example of a . A harbour seal's flipper and a human hand have a very similar structure, but function differently. This is an example of a .

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Answer:

vestigial structure

Homologous structure

Explanation:

Did the assignment.

Answer:

vestigial structure

Homologous structure