(i) Define the term vascular strand

(i) Define the term vascular strand.
(ii) Name the type of vascular bundles in case of (a) root (b) stems and leaves

(i) The vascular tissue system forms a strand of vascular tissues known as vascular strand or vascular cylinder.
(ii) (a) In case of root vascular bundles are radial.
(b) In case of stems and leaves, these are conjoint.