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← Nature & AnimalsWhich outcome occurs when a bird heavily depends on dynamic soaring with blocked air sacs?
A)Enhances predator avoidance techniques
B)Reduced buoyancy; labored breathing develops✓
C)Improved thermal updraft utilization
D)Increased maneuverability in forests
💡 Explanation
Reduced buoyancy and labored breathing develops because the avian respiratory system relies on air sacs for efficient oxygen diffusion, rather than simple lung expansion. Therefore efficient flight is impaired, rather than improved maneuverability, because air sacs ensure continuous airflow.
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