Which is not a function of epidermis?

Differentiate between chlorenchyma and aerenchyma.

Branched short parts of a neuron are called

Name the tissue that:
$(a)$ connects muscle to the bone in humans
$(b)$ forms the inner lining of alveoli
$(c)$ stores fat in our body
$(d)$ transports water and minerals in plants.

Give short answers:
$(i)$ What is the function of cambium?
$(ii)$ What is meant by lignin? Where is it present?
$(iii)$ What are the characteristics of cells of epidermis?

$(i)$ What is epidermis?
$(ii)$ List three functions of epidermis.