Dicondyllic skull and $10$ pairs of cranial nerves are found in

The skin of an amphibian also performs the function of .........

Extra-embryonic membrane $Amnion$ is not found in amphibians because

Which animal is known as the Surinam toad?

$A$: $Ichthyophis$ is a poikilothermic animal.
$R$: Amphibians maintain their body temperature with the changing temperature of the environment.

Give a scientific reason: Amphibia shows adaptation for terrestrial as well as aquatic life.