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← Nature & AnimalsWhich outcome increases during avian molt due to feather loss?
A)Increased energetic cost of flight✓
B)Enhanced insulation in cold weather
C)Improved aerodynamic efficiency soaring
D)Decreased skin abrasion from friction
💡 Explanation
During molt, flight feathers are shed and create gaps; this increases the energetic cost of flight because birds must work harder to maintain lift and control, rather than benefiting from smooth airflow. Therefore the cost is higher, rather than lower with efficient aerodynamics.
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