Which outcome in redwood trees results when high evaporative demand reduces water column pressure?

💡 Explanation

Increased transpiration creates more tension, and therefore xylem cavitation risk increases because this mechanical failure disrupts water transport based on the cohesion-tension mechanism. This occurs, rather than higher guttation or reversing phloem since negative pressure promotes cavitation.

• Which crucial outcome occurs when a raptor's thermaling capability fails due to feather soiling?
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• Which outcome accompanies the release of norepinephrine activating uncoupling protein 1 (UCP1) in a hibernating mammal's brown adipose tissue?
• When oceanic seabirds encounter magnetic anomalies during migration, which consequence results from disruption of magnetoreception?
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• If a mutation disables larval-expressed caspase production, what altered outcome impacts imaginal disc development?