Which adaptation increases soaring efficiency more in birds utilizing thermal updrafts?

💡 Explanation

When birds utilize thermal updrafts, high aspect ratio wings maximizing lift occurs because this design significantly reduces induced drag, essential for efficient soaring in thermals, allowing birds to gain altitude with minimal energy expenditure. Therefore maximizing lift results, rather than radiation absorption, reduced mass, or waterproofing, these contributing less to thermal soaring efficiency.

• Which feedback response decreases transpiration rate when abscisic acid concentration elevates rapidly in xylem sap?
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• Which outcome occurs when high atmospheric CO2 levels override typical stomatal control mechanisms in C3 plants?
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• Which disruption results when ecdysone production fails in butterfly pupae?