all living organisms on earth are divided in pieces called cells. there are smaller piece to cells that include proteins and organelles. there are also lager pieces called tissues and system. cells are small compartments that hold all of the biological equipment necessary to keep an organism alive and successful on earth. a main purpose of a cell is to organize. cells hold a variety of piece and each cell has a different set of functions.
it is easier for an organism to grow and survive when cells are present. If you were only made of one cell ,you would only be able to grow to a certain size. You don’t find single cells that are as large as a cow. Also ,if you were only one cell you could’t have a nervous system , no muscles for movement, and using the internet would be out of the question. The trillions of cells in your body make your life possible.