Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Nature & AnimalsWhich outcome impairs arousal from torpor despite sufficient hypothalamic triggers?
A)Mitochondrial uncoupling in brown fat
B)Calcium channel dysfunction in heart✓
C)Peripheral vasodilation causing hemorrhage
D)Cortisol inhibiting glucogenesis activation
💡 Explanation
When temperatures reach minimum during hibernation, cardiac calcium ion mobilization declines due to prolonged metabolic slow-down. Therefore calcium channel dysfunction impairs efficient heart reactivation, rather than uncoupling, vasodilation or cortisol influence which are more relevant to gradual rewarming during euthermia.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Nature & Animals →- Which outcome occurs when a ruminant’s abomasum pH increases significantly?
- When a bee colony encounters nectar scarcity, which consequence results given a return foragers waggle dance?
- Which outcome occurs when a ruminant’s abomasum microbiome balance shifts?
- Which outcome results when obstacles distort sun visibility during a honeybee waggle dance?
- Which outcome occurs when buoyancy control fails during vertical ascents?
- Which mechanism increases a small mammal's survival chances when exposed to sudden prolonged chill?
