AP BIOLOGY

Detailed explanation-1: -Xylem fibres are smaller. Phloem fibres are larger. They are present in roots, stems and leaves. They are present in stems and leaves, which later transports and grow in roots, fruits and seeds.

Detailed explanation-2: -The xylem and the phloem make up the vascular systems found contiguously in the roots, stems (Fig. 1-3), and leaves of plants.

Detailed explanation-3: -The vascular bundles are arranged near the edge of the stem, with the phloem on the outside and the xylem on the inside.

Detailed explanation-4: -Explanation: Phloem is located in the bark of trees and transports sugars (such as sucrose) and organic compounds to the rest of the plant from the leaves. The other plant vascular tissue is xylem. Xylem is located outer wood of trees, and transports water from the roots to the leaves of trees.