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← Nature & AnimalsWhich outcome restricts vascular cambium growth when xylem sap viscosity increases significantly?
A)Reduced vessel element maturation✓
B)Increased phloem sieve plate obstruction
C)Enhanced cavitation resistance threshold
D)Elevated guard cell turgor pressure
💡 Explanation
Reduced vessel element maturation occurs because high xylem sap viscosity restricts water transport via cohesion-tension mechanism, therefore cambium receives fewer nutrients, rather than increases in pholem obstructions at sieve plates
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