During which life stage do both newts and frogs have gills?

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Explore the Academic Decathlon Science Test. Practice with quizzes and in-depth explanations to boost your exam readiness and improve your scores.

Multiple Choice

During which life stage do both newts and frogs have gills?

Explanation:
Gills appear during the aquatic juvenile form of amphibians. In frogs and newts, life starts in water as eggs that hatch into larvae (tadpoles for frogs, larval newts) that breathe with gills. As they grow, they undergo metamorphosis into adults with lungs, and the gills are lost. So, both have gills during the larval stage.

Gills appear during the aquatic juvenile form of amphibians. In frogs and newts, life starts in water as eggs that hatch into larvae (tadpoles for frogs, larval newts) that breathe with gills. As they grow, they undergo metamorphosis into adults with lungs, and the gills are lost. So, both have gills during the larval stage.

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