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← Nature & AnimalsWhich outcome occurs when flightless birds experience rapid ambient temperature reduction?
A)Muscle ATP depletion from shivering✓
B)Increased feather density via molting
C)Enhanced melanism for solar absorption
D)Reduced metabolic rate and torpor
💡 Explanation
Increased catabolism results because shivering, a form of thermogenesis, attempts to maintain core temperature. Therefore, rapid shivering consumes substantial ATP, leading to muscle ATP reserves depleting, rather than adaptations like molting or behavioral changes like torpor.
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