EVERYDAY SCIENCE

Detailed explanation-1: -Answer and Explanation: Most adult amphibians breathe through both their lungs and through their skin. As young, most amphibians live underwater like fish and use gills to breathe. However, some salamanders remain in the aquatic stage as adults and always use gills for breathing.

Detailed explanation-2: -Larval Stage – After hatching from an egg, amphibians live in water during the larval stage and use gills to absorb oxygen into their bodies. Adult – As they transform into adults, most amphibians develop lungs, grow legs, and are able to live on land.

Detailed explanation-3: -The amphibian larva represents a morphologically distinct stage between the embryo and adult. The larva is a free-living embryo. It must find food, avoid predators, and participate in all other aspects of free-living existence while it completes its embryonic development and growth.

Detailed explanation-4: -Amphibian larvae are born and live in water, and they breathe using gills. The adults live on land for part of the time and breathe both through their skin and with their lungs as their lungs are not sufficient to provide the necessary amount of oxygen.