Primary xylem and phloem are produced by the

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Primary xylem and phloem are produced by the procambium, a primary meristem that gives rise to primary vascular tissue in the developing plant embryo. The protoderm gives rise to the epidermis, the outermost layer of cells in a plant. The leaf primordial gives rise to leaves. The ground meristem gives rise to the ground tissue of the plant, which includes parenchyma, collenchyma, and sclerenchyma cells. The proembryo is the early stage of a developing embryo before it undergoes differentiation.

Primary Xylem and Phloem Are Produced by the