Characteristics of amphibian
Habitat: during their early life they live in water. Later in adult life, they live in water as well as on land. For this reason, they are called amphibians.
Skin: adult amphibians have a naked scale lees, thin, moist, and slimy skin.
Limbs: they have four limbs with clawless fingers.
Respiration: breathing in early stages occurs through gills. In adult stages, gills are replaced by lungs. In water, the skin is used for the exchange of gases.
Cold-blooded: they are cold-blooded animals.