Which consequence occurs when avian air sac volume reduces under heavy aerodynamic load?

💡 Explanation

Flight instability goes up because wing downwash compresses air-sacs, deforming the aerodynamic profile, weakening lift. This causes lift reduction, rather than improved temperature regulation or lung collapse because air sacs influence air flow rather than directly.

• Which process causes leaf discoloration as nitrogen decreases in plants?
• Which adaptation enables albatrosses to maintain prolonged dynamic soaring flight with minimal energy expenditure?
• Which outcome ensures plant survival when soil nitrogen is limited?
• Which adaptation allows marine mammals to dive for extended periods without surfacing?
• Given arid conditions, which outcome occurs when photorespiration accelerates via rubisco?
• Which primary risk does excessive feather wear pose birds during long-distance migration?