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Nature & Animals

Which force precipitates leaf wilting when soil dries?

A)Diminished xylem transpiration pull
B)Increased phloem osmotic potential
C)Enhanced guard cell turgor pressure
D)Elevated root respiration anaerobic threshold

💡 Explanation

Reduced water in soil diminishes water’s availability for root uptake, weakening the xylem transpiration pull, because this process drives water movement to leaves by creating tension; therefore, wilting occurs, rather than continued turgor due to water maintenance mechanisms.

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