what is a cocoon?? How it is formed??
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Explanation:
membrane is secreted around the clitellum by membrane secreting glands. ... The structure now is called cocoon. Inside the cocoon one sperm get fertilized with ova to form zygote. Young worm is developed inside the cocoon and comes out after 2-3 weeks
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Answer:
a coocon is a covering of silky thread that the larvae of moth and other insects make for themselves before they grow in adults cocoon and chrysalides are protective covering of pupa the pupa is intermidative stage between the larva
and adults the moth makes cocoon .
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