Name the different components of xylem and draw a living component?
 
a. Xylem is a __________ permanent tissue which consists of , _______ vessels, xylem parenchyma and xylem fibres.
 
b. The only living component present in the xylem is the ____________.
 
c. The components of the xylem, such as tracheids, vessels, and xylem fibres, are __________.