Bone matrix is rich in

Identify the tissues present in the following and give one specific feature of each:
$(i)$ Leaf stalks below epidermis.
$(ii)$ In stem,around vascular bundles.
$(iii)$ At root and shoot tip.

What is the difference between sclerenchyma and collenchyma?

Meristematic tissues in plants are

Flexibility in plants is due to

Name the region of the plant where meristematic tissues are usually found. Give the position and function of various types of meristematic tissue.