Question

write the salient features of Amphibia 9th​

Answer 1

Answer

1. These can live both on land and in water.
2. They are found in a warm environment.
3. The skin is smooth and rough without any scales, but with glands that make it moist.
4. They have two pairs of limbs for locomotion.
5. They respire through the lungs and skin. Gills might be present externally in some adults.
6. The heart is three chambered.
7. External fertilization takes place . However, in salamanders, the fertilization is internal.
8. Breeding occurs in water.
9. Eg., Frogs, Salamanders.