Question

what is the reason that the pupa swings it's head from side to side in the form of eight???????
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pleasesee tell the answer

Answer 1

When a pupa swings its head side to side in the form of 8, it secrets silk fibre from its body and wraps itself in silk fibre. The silk fibre hardens to form cocoon and the silkworm keeps itself in the cocoon till it becomes adult moth.

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