Answer:
Xylem is composed of 4 elements: tracheids, vessels, xylem parenchyma and xylem fibres
Step-by-step explanation:
The four elements of the phloem are as follows:
Sieve tube elements: They are long tube-like structures arranged longitudinally. ...
Companion Cells: Companion cells are specialised parenchymatous cells. ...
Phloem Parenchyma: ...
Phloem Fibres: