Which process dictates an awakening grizzly bear's body temperature?

💡 Explanation

Non-shivering thermogenesis dictates core temperature because brown fat mitochondria contain thermogenin uncoupling oxidative phosphorylation, therefore, less ATP is produced, rather than shivering which increases mechanical activity, not core temperature directly.

• Which outcome reduces the osmotic gradient in marine fish?
• Which constraint primarily limits dive duration of marine mammals equipped with hemoglobin-rich blood performing prolonged swims during foraging?
• Which biomechanical advantage results when an avian's air sacs increase lung ventilation while soaring?
• Which mechanism causes decreased photosynthetic efficiency when rubisco binds oxygen instead of carbon dioxide?
• Which outcome occurs when prolonged drought restricts desert succulents’ stomatal opening?
• Which consequence results when a cephalopod's camouflage fails in shallow water?