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← Nature & AnimalsWhich outcome reduces water loss when CAM pathway plants experience prolonged drought conditions?
A)Stomata close during daytime heat✓
B)Rubisco enzyme halts carbon fixation
C)Chloroplasts relocate within mesophyll
D)Xylem vessels prioritize leaf hydration
💡 Explanation
Under drought conditions, CAM plants exhibit temporal separation using crassulacean acid metabolism because they open stomata at night to fix CO2, reducing daytime water loss through transpiration. Therefore stomata close during heat results, rather than halting carbon fixation, chloroplast relocation, xylem prioritization each requiring different environmental triggers.
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