$A$ : According to Clowes, there are three histogens in monocot root.

$R$ : In dicot roots, innermost groups of initials form root cap.

Vascular bundles are conjoint, collateral, endarch and lack cambium between xylem and phloem in all, but not in

$I.$ Sunflower seed

$II.$ A wheat leaf

$III.$ Pea plant

$IV.$ Leaf blade of grass

Bulliform cells are present in which of the above plants?

During the formation of interfascicular cambium, which cells lose the capacity to divide but mature to perform specific function ?

Plants require water for their survival. But when watered excessively, plants die. Discuss.