Question

suggest some reasons for the rather small size of the frog's lungs

Answer 1

Explanation:

• When the frog is out of the water, mucus glands in the skin keep the frogmoist, which helps absorb dissolved oxygen from the air. A frog may also breathe much like a human, by taking air in through their nostrils and down into their lungs.

What causes frogs to have lungs

• In order to draw air into its mouth the frog lowers the floor of its mouth, which causes the throat to expand. Then the nostrils open allowing air to enter the enlarged mouth. The nostrils then close and the air in the mouth is forced into the lungs by contraction of the floor of the mouth.