Question
Biology Question on earthworm
The main function of clitellum is
A
coccon formation
B
locomotion
C
excretion
D
copulation
Answer
coccon formation
Explanation
Solution
During breeding season, glandular cells of citellus become very active- and secrete a slimy substance that forms a girdle like covering around the clitellum. In air, this gradually dries and harden to form a tough but elastic, ring-like egg capsule or cocoon.