Which meristem helps in increasing the girth of plants?

The $Tunica-Corpus$ theory is associated with ..........

Healing of wounds in plants takes place by the activity of:

What are the structural characteristics of $(a)$ Meristematic cells near the root tip and $(b)$ The cells in the elongation zone of the root?

Wound healing is due to

The meristematic tissue responsible for the cutting of vascular tissue $(xylem \text{ and } phloem)$ is called: