Name the hormone which brings about metamorphosis in silk moth and changes caterpillar (larva) into adult silk moth.
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Answer:
thyroid hormone is the hormone.
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Ecdysone
Explanation:
In Silk moths, metamorphosis helps change the caterpillar (larva) into an adult silk moth. Neurosecretory cells in an insect's brain secrete a hormone, the prothoracicotropic hormone (PTTH) that activates prothoracic glands, which secrete a second hormone, usually ecdysone (an ecdysteroid), that induces ecdysis. Ecdysone is the major steroid hormone in insects and plays essential roles in coordinating developmental transitions such as larval molting and metamorphosis through its active metabolite 20-hydroxyecdysone (20E).
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