NEET BIOLOGY

Detailed explanation-1: -Amphibians do not produce amniotic eggs, so they must reproduce in water.

Detailed explanation-2: -Adult amphibians may live on land, but must return to water to breed and, in some cases, to hibernate. One species of salamander in Ontario differs from this typical pattern. The redback salamander lays its eggs out of the water.

Detailed explanation-3: -Summary. Amphibians reproduce sexually with either external or internal fertilization. Amphibians may attract mates with calls or scents. Amphibians do not produce amniotic eggs, so they must reproduce in water.

Detailed explanation-4: -Amphibians require water for reproduction, feeding, respiration, etc. Their eggs are not watertight; hence they must be in or near water. Frogs, toads, salamanders, and newts all belong to amphibians.

Detailed explanation-5: -Life as an Amphibian The typical life cycle of amphibians is a larval stage that lasts a few months, followed by a brief metamorphic period, then a long, multiyear life on land. The adults return to the water to court and ultimately lay eggs.