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← Nature & AnimalsWhich behavior develops when light pollution obscures celestial cues for migratory songbirds?
A)Reduced body fat allocation
B)Increased nocturnal restlessness
C)Disrupted internal circadian rhythm✓
D)Elevated corticosterone hormone levels
💡 Explanation
Disrupted circadian rhythm appears because light pollution prevents accurate synchronization via the celestial compass in migratory birds. Therefore, their internal clock drifts because the entrainment does not occur, rather than changes in stress hormones.
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