Zoology - Structural Organisation in Animals Question with Solution | TestHub

Epithelial tissues are the major tissue in glands and form the outer covering or layer of all body surfaces and organs. It consists of closely aggregated cells that adhere firmly to each other and forming either single or multiple layers. Due to the cells being tightly packed there is the very little intercellular matrix. The intercellular matrix consists of protein and is on the cell membrane of epithelial cells