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← Nature & AnimalsWhich outcome occurs when a lepidopteran larva's prothoracic gland cannot synthesize ecdysone?
A)Development persists as a larval stage✓
B)Pupation initiates despite low hormone levels
C)Adult structures are abnormally premature
D)Metamorphosis accelerates toward adulthood
💡 Explanation
When larva's prothoracic gland is unable to produce ecdysone, larval molting and subsequent transformations do not occur correctly because this hormone coordinates these developmental stages, preventing progression to pupation or adulthood. Therefore, the organism persists in the larval stage, rather than pupating or accelerating due to hormonal insufficiency.
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