Which one of the following helps in moulting?

Pheromone

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Ecdysone

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Juvenile hormone

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All of the above

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Solution

The correct option is B Ecdysone
Ecdysone is a steroidal prohormone. It is one of the major insect molting hormone. The hormone is secreted from prothoracic glands. This hormone is responsible for ecdysis or molting. This is an important event which occurs during metamorphosis. Juvenile hormone regulates development, reproduction, diapause and ensures growth of the larva while preventing metamorphosis.
Thus, the correct answer is option D.

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