The chief water conducting elements of xylem in gymnosperms are
Vessels
Fibres
Transfusion tissue
Tracheids
Generally hypodermis in monocots is composed of
Choose correct pair.
Which of the following supporting tissues have cells with unequally thickened walls
$A$ : Cells of sclerenchyma have thickened secondary walls.
$R$ : Cells have deposition of lignin.
Which of the following contain xylem vessel