Primary growth involves:

A) an increase in length.
B) an increase in girth.
C) production of secondary xylem.
D) production of cork cells.
E) division of vascular cambium cells.

Primary Growth

Growth that occurs as a result of cell division at the tips of stems and roots, causing them to elongate, and gives rise to primary tissues.

Secondary Xylem

The part of a plant that contributes to the growth in thickness of the stem and roots, primarily responsible for water transport and support.

Vascular Cambium

A layer of plant tissue that produces new transport cells, contributing to stem and root growth.