Which outcome impairs plant water transport during hot, dry conditions?

💡 Explanation

Xylem experiencing significant tension from high transpiration rates can cause xylem cavitation, because air bubbles disrupt the water column, halting upward water transport. Therefore, transpiration lowers water potential, rather than increasing root pressure, creating stomatal turgor, or affecting phloem.

• Which outcome occurs when xylem walls weaken in tall trees?
• Which aerodynamic change occurs when a soaring bird extends its alula feathers during slow flight and steep climbs?
• Which outcome directly diminishes lift effectiveness due to structural failure of avian air sacs during rapid bird ascent?
• Which risk increases when dissolved oxygen sharply decreases in a freshwater fish's swim bladder?
• Which outcome reduces water reaching leaves when soil moisture decreases?
• Which risk increases when a soaring bird remains aloft during rapid cloud formation?