Skin is kept moist in earthworms. It helps in
Locomotion
Respiration
Protection
Both (a) and (b)
Earthworms respire through their body wall and thus keep their skin moist as it helps in respiration.
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
The two organisms which breathe only through their moist skin are :(a) fish and frog(b) frog and earthworm(c) leech and earthworm(d) fish and earthworm