Question

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amphibians develop special adaptations to live in water and on land.
although amphibians spend their early lives in water, they undergo
metamorphosis to develop , so that they can survive on
land.
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Explanation:

Amphibians undergo metamorphosis. During this process, they develop lungs. Lungs are the respiratory organs that enable them to breathe air and survive on land. Gills are used in the aquatic larval stage, and trachea is more characteristic of insects.

Answer:

lungs