Write a short note on the life cycle of earthworm.

Explanation

Lampito rin begins its life cycle, from the fertilized eggs. The eggs are held in a protective cocoon. These cocoons have an incubation period of about 14- 18 days after which they hatch to release juveniles (Figure). The juveniles undergo changes into non clitellate forms in phase-I aller about 15 days, which then develops a clitellum, called the clitellate at the end of the growth phase-Il taking 15. 17 days to complete. During the reproductive stage, earthworms copulate, and later shed their cocoons in the soil after about 10 days. The life cycle of Lampito marit takes about 60 days to complete.