list out 5 differences between epithelial tissues.

	Suamous	Cuboidal	Columnar	Ciliated
Cells	Irregular, thin and flat	Cube-shaped	Tall, pillar like	Columnar with cilia
Location	Cells lining blood vessels and lung alveoli, lining of mouth and oeophagus, skin	Lining of kidney tubules, ducts of salivary glands	Lining of intestine, stomach and gall bladder	Lining of trachea, bronchi, sperm ducts and oviducts.
Function	Protection, Forming a selectively permeable surface	Providing mechanical support.	Absorption and secretion	Movement of cilia pushes the mucus forward through the ducts.
Position of nucleus in cells	Central	Central	Towards the base	Towards the base