Write a note on complex tissues.

(N/A) Complex tissues are made up of more than one type of cells that work together as a unit to perform a common function. In plants,the two main types of complex tissues are $Xylem$ and $Phloem$.
$1$. $Xylem$: It functions primarily as a conducting tissue for water and minerals from roots to the stem and leaves. It also provides mechanical strength to the plant parts. $Xylem$ is composed of four different kinds of elements: $Tracheids$,$Vessels$,$Xylem$ $fibres$,and $Xylem$ $parenchyma$.
$2$. $Phloem$: It transports food materials,usually from leaves to other parts of the plant. $Phloem$ in angiosperms is composed of $Sieve$ $tube$ $elements$,$Companion$ $cells$,$Phloem$ $parenchyma$,and $Phloem$ $fibres$.