A) corpora cardiacum
B) corpora allata
C) neurosecretory hormone
D) prothoracic gland
Correct Answer: D
Solution :
Prothoracic gland is also known as moultgland in some arthropods and Y organ or ventral gland in crustaceans. The prothoracic gland secretes moulting hormone called ecdysone or ccdysome which is steroid and stimulates moulting or ecdysis during metamorphosis in insects.
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