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← Nature & AnimalsWhich outcome occurs in mammals undergoing exertion when the air temperature nears their body?
A)Increased core body temperature occurs✓
B)Brown fat thermogenesis significantly increases
C)Shivering generates maximal heat
D)Metabolic rate reaches basal levels
💡 Explanation
Increased body temperature occurs because vasodilation cannot effectively dissipate heat via radiation into the air when the thermal gradient is low. Evaporative cooling is limited, therefore core temperature rises rather than homeostasis being maintained.
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