The only promoter of Leaf's senescence in the following plant hormones is:
Correct answer: D. Abscisic acid
- A. Gibberellins
- B. Cytokinins
- C. Auxins
- D. Abscisic acid
Explanation
Abscisic acid is a plant hormone that promotes leaf senescence and is involved in stress responses, such as drought and salt stress.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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