(a) Simple Tissue:
Simple tissue is made up of same type of cells and mostly cover the surface of both, internal organs of the body and external organs of the body. Simple tissue is tightly packed together. A simple tissue is called epithelium in animals and epidermis in plants. Example of simple tissue is muscle tissue.
(b) Complex Tissue:
Complex tissue is made up of different type of cells. The main purpose of complex tissue is to actually bind organs together and to support them. These tissues are scattered everywhere in the body. They are also known as connectivity tissue in animals and vascular tissue in plants. Example of complex tissue is blood tissue.
