Only one order of amphibians have exoskeleton (dermal scales)

Only one order of amphibians have exoskeleton (internal scales)

One of the amphibians have gills

Why amphibians are without exoskeleton?

Amphibians do not have exoskeleton. Give reason.

Amphibians do not have exoskeleton. Give reason.

Reptiles and amphibians have evolved from mammals.

Which one of the folloWing amphibia has dermal scales in its skin :-

State whether the following statement is True or False. Correct the false statement. In amphibia, exoskeleton is in the form of scales.