Question

The skin of frog is

• A. thin and vascular
• B. permeable to water
• C. contains mucus glands
• D. all of the above

Answer 1

The correct option is D all of the above

Frog respires through skin when it is present in water. The skin is composed of thin membranous tissue that is permeable to water and contains a large network of blood vessels. The thin membranous skin allows the respiratory gases to readily diffuse directly down their gradients between the blood vessels and the surroundings. When the frog is out of the water, mucus glands in the skin keep the frog moist which helps to absorb oxygen from the air.