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← Nature & AnimalsWhich consequence results when avian air sacs rupture due to elevated internal temperatures?
A)Increased bone density aids structural support
B)Compromised thermoregulation favors fungal infections
C)Reduced flight efficiency, decreased oxygen uptake✓
D)Enhanced keratin production builds wing strength
💡 Explanation
Ruptured air sacs impair respiratory function reducing flight efficiency because pressure differentials cannot be maintained during flight. This disrupted ventilation negatively impacts oxygen uptake due to compromised gaseous exchange capability, therefore oxygen supply degrades faster, rather than promoting bone density enhancements via different pathways.
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