Propose an explanation for why desert plants might be especially dependent upon aba

ABA

Explanation:

ABA stands for Abscisic Acid ABA is often referred to as a inhibitory rather than stimulatory hormoneIt is involved in various functions like the closure of stomata, bud and seed dormancy and is known to inhibit other hormonal actionsIt is found in leaves ( where it is partially synthesized), stems, and green fruits and its biosynthesis is related to the process of cartenoid productionIt is generally associated with negative-feedback interactions or stress-related environmental signals such as drought, freezing temperatures and environmental pollutantsIn deserts, there is scarcity of water and most of the time there are conditions of drought Large amounts of abscisic acid in the leaves causes the stomata to close which helps the plant conserve water during droughts