The primary growth in plants is effected by:

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(B) Primary growth in plants refers to the increase in length of the plant body,which occurs due to the activity of primary meristems.Promeristem (or

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Promeristem

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(B) Primary growth in plants refers to the increase in length of the plant body,which occurs due to the activity of primary meristems.Promeristem (or promeristematic tissue) represents the earliest stage of meristematic cells located at the tips of roots and shoots.These cells divide actively to produce the primary tissues of the plant body,thereby contributing to primary growth.Lateral meristems (like vascular cambium and cork cambium) are responsible for secondary growth,which involves an increase in the girth or thickness of the plant.

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