Which outcome of extreme heat occurs within non-irrigated plant xylem?

💡 Explanation

Tensile strength decreases because high temperatures increase water molecule kinetic energy, thereby reducing hydrogen bonding and the cohesion-tension mechanism's effectiveness, rather than raising root pressure; therefore, transport fails.

• Which risk increases when migratory birds encounter prolonged intense headwinds?
• Which aerodynamic effect occurs when flight feathers separate excessively during avian flight?
• Which consequence results when prolonged anoxia constrains the rhizosphere of legume plants?
• Which outcome occurs when marine fish excrete excess magnesium sulfate without sufficient water?
• Which physiological outcome occurs when an endothermic mammal encounters sudden intense heat stress?
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