Which event arises in tall trees when transpiration-induced tension overcomes root pressure at night?

💡 Explanation

Cavitation occurs because xylem sap is pulled under great tension during transpiration, but at night root pressure is lost; therefore, water columns break, and air bubbles block transport rather than water remaining continuous.

• Which aerodynamic effect occurs when a soaring bird actively adjusts its flight feathers to increase lift?
• Which outcome occurs when invasive plant species outcompete native plants, altering nitrogen cycling?
• Which effect follows activation of membrane ion channels by snake venom?
• Which risk arises for migratory birds experiencing high solar activity?
• Which process facilitates thermal regulation during soaring flight, causing efficient cooling?
• Which outcome occurs when fish blood and water flow parallel without countercurrent exchange?