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Question

The life cycle of mulberry silk worm is completed within ...............

A
20 days
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B
30 days
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C
35 days
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D
45 days
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Solution

The correct option is D 45 days
The total life cycle of a silkworm ranges from 6-7 weeks, approximate 42-48 days. Life span is about 3-4 days, hatching requires 10-12 days and metamorphosis requires further 30 days thus leads to 43-46 days. Hence, option D is correct.

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