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← Nature & AnimalsWhich systemic outcome arises when insect prothoracic glands fail prematurely between molting stages?
A)Accelerated metamorphosis into adult form
B)Maintenance of permanent larval characteristics✓
C)Disrupted hormonal gradient formation
D)Increased fat body mass accumulation
💡 Explanation
Permanent larval characteristics result because ecdysone production ceases; thus, the programmed molting sequence halts after interruption of the prothoracicotropic hormone axis, resulting in larval stasis rather than a fully developed pupal or late instar adult.
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