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← Nature & AnimalsWhich process facilitates thermal regulation during soaring flight, causing efficient cooling?
A)Enhanced evaporative heat loss✓
B)Increased metabolic heat production
C)Reduced feather boundary layer
D)Decreased respiratory water conservation
💡 Explanation
Enhanced evaporative heat loss occurs because increased airflow past air sacs containing blood vessels increases water evaporation from those membranes. This cutaneous evaporation mechanism cools the blood, therefore lowering the bird's overall body temperature, rather than increasing metabolic heat.
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