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← Nature & AnimalsWhich structural adaptation results when juvenile hormone diminishes sharply during pupae formation?
A)Triggered apoptosis of most larval cells✓
B)Induced secretion of chitinous cuticle
C)Prolonged expression of prothoracicostatic hormone
D)Suppressed segmentation gene transcription permanently
💡 Explanation
Apoptosis occurs because diminished juvenile hormone allows imaginal discs to differentiate via developmental cascade, therefore adult structures form rather than continued larval growth due to halted larval gene expression.
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