Which physiological effect is limited during bear hibernation despite low body temperature?

💡 Explanation

During hibernation, bears undergo substantial metabolic depression while maintaining synaptic plasticity via upregulated expression of neuroprotective proteins to facilitate memory retention upon arousal. Therefore synaptic plasticity is present, rather than complete muscle preservation, cessation of respiration, or full elimination of free radicals which requires more extreme conditions.

• Which consequence results when shivering thermogenesis efficiency drops sharply?
• Which outcome occurs when a saltwater fish encounters a sudden freshwater influx in estuarine waters?
• Which risk increases within a butterfly pupae upon premature ecdysone exposure?
• Which physiological outcome occurs in a dog panting on a hot day via vasodilation?
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• Which risk increases when rapid ascent depletes gas bladder?