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Nature & Animals

Which consequence commonly develops when raptors soar utilizing thermals?

A)Reduced hovering maneuverability occurs downstream
B)Increased metabolic rates decrease predation efficiency
C)Feather wear elevates aerodynamic parasite drag
D)Air sac collapse lowers oxygen assimilation

💡 Explanation

Increased thermal soaring subjects flight feathers to elevated mechanical stress creating higher wear; this generates greater aerodynamic parasite drag because damaged barbs no longer create smooth airflow; therefore, drag increases rapidly rather than soaring efficiency improving.

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