AP BIOLOGY

Detailed explanation-1: -The vascular cambium arises between the primary xylem and phloem of a young stem or root. Parenchymatous cells become meristematic and begin to produce secondary xylem or wood toward the inside of the cambium and secondary phloem toward the outside of the cambium.

Detailed explanation-2: -The cambium located in between xylem and phloem in dicot stem is intrafascicular. Itrafascicular cambium is primary meristem that develops from the procambium of the stem apex. It is located inside the open vascular bundles, between phloem and xylem patches.

Detailed explanation-3: -The tissue present between xylem and phloem in roots is called conjunctive tissue. The endodermis is the innermost layer of the cortex and is made up of parenchymatous cells. Pith is centrally located parenchymatous tissue in roots and stems.