Stomata in grass leaf are

Epidermal cells are often modified to perform specialised functions in plants. Name some of them and function they perform.

Lenticels are involved in :

Which one of the following is a type of tissue system

...$A$... are structures present in the epidermis of leaves. They regulate process of transpiration and ...$B$... exchange. It is composed of two bean-shaped cells known as ...$C$... cells.

Choose the correct combination of $A , B$ and $C$ from the following options

Pericycle is....