Cartilage is not found in

$(a)$ Identify the given figures.
$(b)$ State in brief their structure.
$(c)$ Describe the role performed by the two.

Justify by giving two points that cartilage is a tissue. What is its matrix made of? Where are these tissues found in our body?

Give the characteristics and role of the following:
$(i)$ Cutin
$(ii)$ Suberin
$(iii)$ Sclereids

$(a)$ What is the function of the tissue present in the bark of a tree?
$(b)$ Which substance is present in the adipocyte? How does it help?

Flexibility in plants is due to