Which outcome increases during avian molt due to feather loss?

💡 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.

• Which outcome increases when juvenile hormone concentration falters prematurely during a larval stage's ecdysis?
• Which aerodynamic outcome occurs when a soaring bird collapses diaphragmatic air sacs?
• Which outcome follows when a marine iguana emerges onto cold rocks after swimming?
• Which developmental outcome results when juvenile hormone analogue abnormally activates imaginal disc cells during larval molting?
• Which risk increases when punctured avian air sacs lead to subcutaneous emphysema during sustained flight?
• Which outcome occurs among migrating birds experiencing excessive wing loading during headwinds encountering thermal updrafts?