Question

Explain the formation of cocoon in silkworms?​

Answer 1

Answer:

A silkworms secret a very fine filament made of finroin protiens from gland on its head which solidifies upon exposure to air and become silk fibres through movement of head from side to side in the form of figure of eight the silkworm completely covers itself forming the coccon

Answer 2

• It spins a protective cocoon around itself.
• The cocoon serves as protection for the pupa which is in shades of white, cream and yellow.
• The final moult takes place inside the cocoon and the larva develops into the brown and chitinous structure called the pupa.
• The pupa takes about 2-3 weeks to metamorphose into an adult moth.
• Cocoon is the fourth stage in which the larva spins a silk thread to protect itself from its predators.

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