All cells arise from pre-existing cells by division. Every living cell today is said to be descended from a single ancestral cells that lived 3-4 billion years ago. In the vast time period, evolution of cells and organisms was seen, thus continuing the success of life on Earth. The genetic information has been preserved through cell division.
Reproduction of cells is fundamental to the development and function of all life. In single-celled organisms, cell division creates are a entire new organism. In multicellular organisms cell division transform a single founder cell into different communities of cells that constitute the tissues and organs. In adult organisms cell division replaces cells those die from natural causes or those that are lost to environmental changes.
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