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← Nature & AnimalsWhich risk increases when a tree experiences reduced stomatal conductance?
A)Increased xylem cavitation formation likelihood✓
B)Elevated photorespiration oxygen consumption rate
C)Decreased phloem sap translocation speed
D)Enhanced root osmotic water absorption
💡 Explanation
Xylem cavitation increases because reduced stomatal conductance hinders transpiration influencing the cohesion-tension mechanism. Lack of sufficient water movement increases tension within the xylem, therefore creating a risk of forming cavitation bubbles, rather than reduced photorespiration or enhanced water absorption.
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