Phylum Choradata; Class Amphibians

Frogs, Salamaders, Caecilians and Axolotl belongs to what subclass of Phylum Chordata; Class Reptilia?

Are a group comprised of fishes and amphibians that their egg lacks a hard shell is called?

The hearing organ for amphibians is called?

What does larval stage used for breathing?

How many chambers does an amphibians have?

This class refers to "double life"

Toads belong to what order of class amphibians?

Is a biological process where an organism goes through a significant change in form, structure, or substance, often after birth or hatching:

Is the process of exchanging oxygen and carbon dioxide through the skin, rather than using gills or lungs.

Name an organism in amphibians that retain their gills throughout their life cycle.