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Question

Metamorphosis of insects is regulated through hormone

A
Pheromone
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B
Thyroxine
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C
Ecdysone
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D
All of the above
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Solution

The correct option is C Ecdysone
Metamorphosis is controlled by ecdysone hormone which is a prothoracicotropic hormone. It is secreted by the prothoracic gland and triggers moulting. It activates tissue to promote metamorphosis. Pheromone is a chemical in animals produces which changes the behaviour of another animal of same species while thyroxine helps in the metamorphosis in frogs.
So, the correct answer is option C.

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