Word Count : 448

---

In insects, moulting and metamorphosis are critical developmental processes regulated by a complex interplay of hormones. These hormones control the timing of shedding the exoskeleton, tissue differentiation, and the transformation from one developmental stage to another, ensuring proper growth and survival. The primary hormones involved in these processes are ecdysone, juvenile hormone (JH), and prothoracicotropic hormone (PTTH), each having a distinct role in insect physiology. Ecdysone, a steroid hormone secreted by the prothoracic glands, is central to initiating moulting. Its secretion is triggered by PTTH, which is released from _______ ______ ___ _____ _________ ________ __________ ___ ___ _________.
________ ________ ______ _______ ______.
_____ ______ ____ ________ ___ _______ ____ ______ __________.
____ __________ _________ ___ ___.
____ _________ __________ _____ ___ ____ ___ ________ __________ ______ ________.
_____ ______ _______ ______ ___ _____ __________ ____ _____ _____ ____.
____ ______ ________ ________ ________ _____ __________.
________ _____ ___ __________ ___.
________ _______ _______ ____ ______ _______ _____ ____ ________ ________ _______ _____.
______ _____ _________ ___ _______.
______ ____ __________ ______ _________ _______ ____ ____ ___ ________.
___ _______ _____ _______ ____ ________ _________.
___ ________ ____ ____ _________ ___ ____ _______ ________.
______ ____ ________ ________ ______.
_______ ____ __________ ________ _____ ______.
____ _____ ______ ___ ____.
______ ___ _________ _______ __________ _____.
___ _______ _______ ___ _______ _________ ___ __________ _________ ______ ________.
____ __________ _________ ___ _________ ________ ___ ____ ________ __________.
_________ _______ ________ _______ ___ _____.
____ _____ ___ _______ _______ ___ __________ _______ ___ _________ __________ ______.
_________ __________ __________ _________ __________ __________ _________ ____ ______ _____ __________.
_________ ______ ___ _________ _________ _______ ________ _________.
_______ ________ _____ ________ ______.
___ ___ _____ ____ __________ ________ _________ ______ ___ ____ ______.
________ ______ ________ ______ _____ ___ _____.
______ __________ ______ ____ __________.
________ _________ ____ ___ __________ ______ __________ ______ ___ _________.
__________ __________ _____ ________ _____ ______ _______ _______ ______ __________ ____.
____ ____ ________ _____ ____.
_____ ________ __________ ______ _______ ____.
______ _______ ______ __________ __________ ________ __________ ________ __________ __________ ____ _________.
______ ____ __________ _____ ____ ________ __________ _________ ______ __________.
________ ________ ________ __________ __________ ________ __________ _________ _____ _________ _________.
________ ___ ____ __________ ______ ________.
______ ____ _____ ______ _______ __________ ____.
______ ___ _________ _________ _____ _______.
______ ___ ______ _________ ______ ____ _______ _____ ___ ____.
_____ __________ _________ ____ ___ ___.
___ ____ _____ ____ _______ _____ ___ _____ ___ ___ __________.
_____ ___ ______ ____ ________ _______ __________ ______.
__________ ___ _______ _______ ______.
________ ______ _________ ___ ________ ___ ________.
___ ________ ______ ________ __________ _______ ________ _____.
_______ ______ ________ ______ __________.
__________.
Get Full Answer on WhatsApp