Answer:
Auxin is a key regulator of plant growth and development, orchestrating cell division, elongation and differentiation, embryonic development, root and stem tropisms, apical dominance, and transition to flowering
Explanation:
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Auxins are the plants growth substance produced by the shoot for root tips of growing plants
auxins in the shoot: simultaneous cell growth by absorption of water.
auxins in root: slow down the cell growth.
