The function of a vessel is
Condution of food
Conduction of water and minerals
To provide strength
None of these
Plant cells without the nucleus are
Generally hypodermis in monocots is composed of
Xylem vessels and phloem companion cells are generally absent in
Parenchyma cells in between xylem and phloem bundles in roots are called as
$A$ : Sieve tubes and companion cells are related ontogenetically.
$R$ : Both develop from same mother cell.