What is the utility of tissues in multi-cellular organisms?
Millions of cells will be there in multicellular organisms. Specific functions are carried out by different groups of cells. There is a clear-cut division of labour in multicellular organisms i.e., different parts of the body of a multicellular organism perform specific functions. For example, the brain controls all other parts of the body, the heart pumps blood to all parts of the body, kidneys remove waste materials from the body, sense organs collect information from external sources and transfer to the brain etc. All these functions would never be possible without formation of tissues in multicellular organisms.
