Assertion (A): Xerophytes often have stomata on the lower surface of leaves and sometimes sunken in pits. Reason (R): This reduces the water potential gradient between the substomatal cavity and the external atmosphere, thereby reducing transpiration.

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Biology · Plant Physiology

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Both A and R are true, and R is the correct explanation of A

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