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Nature & Animals

Which risk increases when a hibernating bear's metabolic rate rises significantly?

A)Premature arousal from hibernation state
B)Increased efficiency of lipolysis
C)Enhanced heat production via diffusion
D)Reduced urea excretion rate

💡 Explanation

Premature arousal occurs due to thermogenesis exceeding the critical threshold temperature; because endogenous rhythms shift their set points via non-shivering thermogenesis, specifically uncoupling protein 1 (UCP1), causing disruption, therefore, the metabolic demand goes outside survivable bounds, rather than remaining suppressed.

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