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← Nature & AnimalsWhich risk increases when a plant's epidermal wax layer degrades, affecting stomata function?
A)Uncontrolled water loss by transpiration✓
B)Enhanced CO2 uptake under drought
C)Increased photosynthetic efficiency generally
D)Decreased sensitivity to abscisic acid
💡 Explanation
Increased degradation of the wax layer causes excessive water diffusion because cuticular transpiration increases disproportionately rather than being regulated. Therefore, uncontrolled transpiration drives excessive water loss, undermining water conservation by stomatal closure, rather than enhancing CO2 uptake.
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