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 risk increases for saltwater fish consuming excessive amounts of freshwater due to osmotic pressure imbalances?
• Which action will directly reduce the effectiveness of a fish's swim bladder in deep water?
• Which outcome impairs osmoregulation when a freshwater fish suffers gill damage?
• Which outcome is associated with crassulacean acid metabolism pathways?
• Which outcome occurs when repeated low-dose venom exposure triggers immunity?
• Which consequence results when a chameleon's camouflage fails under intense ultraviolet (UV) radiation?