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Question:

Which of the following animals does not undergo metamorphosis?

Moth

Earthworm

Starfish

Tunicate

Solution:

A change in the form and often habits of an animal during normal development after the embryonic stage is called the metamorphosis. While such a metamorphosis can be seen in moth, starfish, and tunicate, the earthworm does not undergo any kind of metamorphosis during its life cycle. Thus, the correct answer is option B.