. How many sleeping periods does a silkworm have during the whole feeding period?

(a)       2          (b)       5

(c)       8          (d)       16

Best Answer

(b)     During the feeding period, a silkworm sleeps four times (twenty-four hours each time) at intervals of about six days. While sleeping, its skin cracks and on awaking, the worm sloughs off i.e., leaves the old skin and comes out in a new one.

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