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← Nature & AnimalsWhich process in arid plants minimizes water loss when high temperatures cause stomata to close?
A)CAM pathway fixing CO2 at night✓
B)C4 pathway spatially separating fixation
C)Increased root osmosis compensating drawdown
D)Accelerated photorespiration using excess O2
💡 Explanation
When high temperatures cause stomata to close, the CAM pathway enables plants to fix CO2 at night, storing it as an acid and releasing it during the day to minimize water loss. Therefore CAM pathway activation results, rather than C4 which separates spatially, or osmosis/photorespiration which respond to different conditions.
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