Question

-define amphibian

Explanation:

An amphibian is a cold - blooded vertebrate animal that typically has a moist skin, lives both in water and on land at different stages of its life cycle, and undergoes metamorphosis. Examples include frogs, toads, and salamanders.

Answer:

An amphibian is a cold - blooded vertebrate that lives part of its life in water and part on land and has moist skin.