Which outcome occurs when structural barb discontinuities in flight feathers exceed a threshold during prolonged avian soaring?

💡 Explanation

Compromised airfoil shape maintenance occurs because feather barb discontinuity reduces aerodynamic efficiency via decreasing structural stiffness therefore inhibiting optimal lift production, and increasing drag, rather than enhancing some other ability under differing pressures.

• Which force precipitates leaf wilting when soil dries?
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