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Answer: 1. Earthworm

Key idea: Metamorphosis is a change from larva to adult.

Moths (caterpillar), tunicates (tadpole-like larva) and starfish (bipinnaria larva) all have larval stages. Earthworm has direct development, so it has no metamorphosis.

Answer: option 1.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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