Substances which originate at the tip of the | vedclass

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(B) The substances that originate at the tip of the stem and control growth in other parts of the plant are known as plant hormones or phytohormones.S

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Auxins or hormones

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(B) The substances that originate at the tip of the stem and control growth in other parts of the plant are known as plant hormones or phytohormones.Specifically,$Auxins$ are produced in the apical meristems (tips) of stems and are transported to other parts of the plant to regulate growth,cell elongation,and development.Therefore,the correct option is $(b)$.

Substances which originate at the tip of the stem and control growth elsewhere are

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