Question

the only living tissue in plant xylem is

Answer 1

The only living tissue in plant xylem is xylem parenchyma.
All other three types of tissue, viz., xylem fibers, vessels and tracheids are dead.
On contrary to this situation, phloem have three types of living tissues, viz., sieve tube cells, companion cells and phloem parenchyma.
Phloem has only one dead tissue, i.e., phloem fibers.

Answer 2

Answer:

Xylem parenchyma. The xylem is the vascular tissue responsible for the upward conduction of water and nutrients from the roots. The xylem tissue moves water and nutrients to various parts of the plant such as shoots and leaves. ... Parenchyma cells are the only living cells in the xylem.