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← Nature & AnimalsWhich consequence results when a soaring bird's air sacs malfunction during thermalling?
A)Decreased evaporative cooling efficiency
B)Improved muscle oxygen delivery
C)Impaired pressure equalization in flight✓
D)Enhanced sensory perception of altitude
💡 Explanation
Impaired pressure equalization in the bird’s respiratory system hinders controlled soaring because air sacs balance the pressure. Inability to equalize via airsac ventilation reduces stability, therefore efficient soaring becomes problematic, rather than affecting functions like evaporative cooling.
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