AP BIOLOGY

Detailed explanation-1: -It mostly contains living cells. Xylem consists of fibers, xylem vessels, and tracheids. Phloem consists of phloem fibers, phloem parenchyma, sieve cells, sieve tubes, and companion cells. The xylem is located deeply in the plant in the center of the vascular bundle.

Detailed explanation-2: -The vascular system is comprised of two main types of tissue: the xylem and the phloem. The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves. The phloem carries food downward from the leaves to the roots.

Detailed explanation-3: -The rest of the stem is made up of ground tissue and vascular tissue. The vascular tissue is arranged into bundles of xylem and phloem that are scattered throughout the ground tissue. Within each bundle, the phloem is located closer to the outside of the stem, and the xylem is located closer to the inside of the stem.

Detailed explanation-4: -The vascular bundles are arranged near the edge of the stem, with the phloem on the outside and the xylem on the inside.