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Nature & Animals

Which 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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