Which one of the following statements about meristematic tissues in plants is correct?
- These are dead tissues and form wood
- They provide flexibility to plant due to their thickened walls
- These are present in the bark of a tree only
- Growth occurs in plants due to division of cells of these tissues
A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place. Meristematic cells give rise to various organs of the plant and keep the plant growing.
The correct option is D.