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← Nature & AnimalsWhich mechanism allows xerophytes to conserve water when soil moisture declines under drought conditions?
A)Abscisic acid inducement of stomatal closure✓
B)Increased root respiration from soil drying
C)Enhanced translocation of cytokinins to shoots
D)Increased leaf surface due to growth
💡 Explanation
Drought stress causes abscisic acid (ABA) production, triggering stomatal closure. ABA induces the mechanism of stomatal closure by reducing guard cell turgor, because this reduces transpiration, therefore conserving water, rather than futilely optimizing cytokinin production under adverse conditions.
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