Question

Mucus helps frog in forming

• A. Thick skin
• B. Dry skin
• C. Smooth skin
• D. Moist skin

Answer 1

The correct option is D Moist skin

The skin is composed of thin membranous tissue that is quite permeable to water and contains a large network of blood vessels. The thin membranous skin is 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 absorb dissolved oxygen from the air.

So, the correct answer is 'Moist skin'.