What type of gland is a sebaceous gland?

Simple columnar epithelium is composed of a single layer of __ $(A)$ __ cells. Whose nuclei are located at the __ $(B)$ __ . Choose the correct option $:-$

Pavement epithelium is an alternate name for

The tissue that covers the external and internal surfaces of parts of the body in animals is

Simple epithelium is composed of a single layer of cells and does not function as $:-$

What is the function of a gap junction?