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← Nature & AnimalsWhich outcome occurs when a plant adapts Crassulacean Acid Metabolism (CAM) in an extremely arid environment?
A)Stomata opening primarily at night✓
B)Increased rubisco carboxylation efficiency
C)Enhanced xylem water transport capacity
D)Decreased chlorophyll pigment concentration
💡 Explanation
When CAM plants face aridity, they utilize temporal separation by opening stomata at night during cooler temperatures via osmoregulation to minimize water loss and carbon dioxide uptake, initiating initial carbon fixation. Therefore stomata open at night, rather than increasing efficiency, transport, or pigmentation, processes irrelevant in the extreme dessication conditions of the question.
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