Which process is most directly suppressed once a hibernating bear enters a state of torpor?

💡 Explanation

Once a bear enters torpor, further cycles of induced arousal are energetically expensive, and brown fat thermogenesis stops because noradrenaline signaling is surpressed, minimizing metabolic activity and therefore basal consumption. Therefore brown fat thermogenesis is suppressed, rather than others which continue at low rates until arousal events force a response.

• Which limit maximizes lift-to-drag coefficient when soaring avian wing loading exceeds its optimum?
• Which shift in metabolic activity occurs during mammal hibernation's torpor phase?
• Which mechanism reduces bat predation when foraging near reflective surfaces?
• Which outcome occurs when a fish's lamellar structure collapses during filter feeding?
• Which risk increases when a caterpillar pupates in resource-scarce conditions?
• Which outcome is caused by disruption of ion channel regulation during arousal from mammalian hibernation?