Question

Briefly describe how reptiles amphibian and mammals are each adapted to living out of the water.

Consider how animals move, exchange of gases and reproduction etc..

Answer 1

Amphibians though live on land but they almost every time go to water to lay their eggs and reproduce.

The amphibians who have weak legs crawl on land, the ones who have strong back legs jump like frogs or walk like toads.

They breathe through lungs but also through skin.

Reptiles can live far away from water. On land they survive in the form that they   have water proof skin. Whenever the climate becomes hot and dry, the water inside their body doesn't evaporate.They were the first one to lay eggs on land. They are surrounded by thick waterproof shells that contain portable liquid that protect the embryo.

They are cold blood and regulate the body temperature according to the surroundings.They have lungs to breathe.

mammals evolved to have jaws and eyes. They can maintain a constant internal body temperature and hence can successfully survive on anywhere part of land.

They have body hair to protect them.

They have limbs to walk . They reproduce sexually. exchange of gases take place through a pair of lungs for all the mammals who live on land.