Question

Give scientific reasons:
Though tortoise lives on land as well as in water, it cannot be included in class-Amphibia.

Hint:

Amphibians generally have permeable skin and need water for reproduction, whereas tortoises are more adapted to terrestrial life.

Answer 1

1. Tortoises are primarily land-dwelling reptiles and only spend a small part of their life in water. Amphibians, on the other hand, are more dependent on water for reproduction and early life stages.
   
2. Tortoises have a hard, bony shell that is not present in amphibians like frogs. Amphibians also have more permeable skin, allowing for respiration through their skin, while tortoises lack this characteristic.