The plant hormone associated with apical dominance is:
Correct answer: A. Auxin
- A. Auxin
- B. Gibberellin
- C. Cytokinin
- D. Ethene
- E. Abscisic acid
Explanation
The correct answer is A Auxin. Apical dominance is a phenomenon in plants where the growth and development of the main apical bud at the tip of a stem inhibits the growth of lateral buds further down the stem. Auxin is the plant hormone primarily associated with apical dominance.
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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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