Plant growth in length is increased by

$A$ group of actively dividing cells is called $...............$.

The pith is formed by . . . . . . .

The terms 'protoderm' and 'procambium' were coined by:

Identify part $Y$ in the given diagram of a shoot apex.

In a slide showing different types of cells,can you identify which type of cell may be meristematic and which one is incapable of dividing,and how?