$(a)$ Identify the given figures.
$(b)$ State in brief their structure.
$(c)$ Describe the role performed by the two.

(N/A) $(X)$ is a tracheid,and $(Y)$ is a vessel.
$(b)$ Both are tubular structures. They consist of dead cells with thick,lignified walls.
$(c)$ Both tracheids and vessels are components of the xylem tissue and are primarily responsible for the vertical transport of water and dissolved minerals from the roots to the rest of the plant.