Fats are stored in the human body in which of the following?

Write the functions of parenchyma cells.

Survival of plants in terrestrial environment has been made possible by the presence of

The intestine absorbs digested food materials. Which type of epithelial cells are responsible for this?

The intestine absorbs digested food materials. Which type of epithelial cells are responsible for this?

Find out the reason behind the following statements:
$(a)$ Epidermis is thicker in desert plants,though it is usually single-layered.
$(b)$ Presence of a waxy layer (secreted by the epidermis) on the outer surface of plants.
$(c)$ Meristematic cells have a prominent nucleus and dense cytoplasm but lack a vacuole.