Question

nane the hormone which promotes chemotrophism,hydrotrophism,thigmotrophism

Answer 1

auxin hormone helps in chemotrophism hydrotrophism and thigmitrophism.
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Answer 2

Answer:

Auxin

Auxin moves to the darker side of the plant, causing the cells there to grow larger than corresponding cells on the lighter side of the plant. This produces a curving of the plant stem tip toward the light, a plant movement known as phototropism. Auxin also plays a role in maintaining apical dominance.