![]() The video compresses 30 hours of mitotic cell division into a few seconds. Watch cells divide in this time lapse video of an animal cell (top) and an E. In human bodies, nearly two trillion cells divide every day. Organisms grow because cells are dividing to produce more and more cells. When organisms grow, it isn't because cells are getting larger. Cells also divide so living things can grow. ![]() For example, when you skin your knee, cells divide to replace old, dead, or damaged cells. Why Do Cells Divide?Ĭells divide for many reasons. The ability of cells to divide is unique for living organisms. We call this process "cell division" and "cell reproduction," because new cells are formed when old cells divide. A single cell divides to make two cells and these two cells then divide to make four cells, and so on. ![]() Is it magic? Or, is there another explanation?Įvery day, every hour, every second one of the most important events in life is going on in your body-cells are dividing. Sometimes you accidentally bite your lip or skin your knee, but in a matter of days the wound heals. 3D image of a mouse cell in the final stages of cell division (telophase). ![]()
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