Lateral meristem is responsible for

The length of different internodes in the stem of sugarcane is variable due to the activity of:

Regeneration of damaged growing grass following grazing is largely due to

What is meant by meristematic tissues? Explain its various types.

The cells in the root and shoot apex regions are:

Identify the tissues $P$ and $Q$ based on their functions:
Tissue $P$: Responsible for the increase in length of roots and stems.
Tissue $Q$: Responsible for the increase in girth (thickness) of roots and stems.
Choose the correct option for $P$ and $Q$.