Question

Question 6
Earthworms and frogs breathe through their skin because of which the skin of both the organisms are

(a) moist and rough
(b) dry and rough
(c) dry and slimy
(d) moist and slimy

Answer 1

The answer is (d).
In both earthworms and frogs - Oxygen from the air dissolves in the moisture on their skin and then travels into the skin blood capillaries. So their skin is protected by a thin cuticle and kept moist by a slimy mucus.