I know my cells are working because nothing in particular has happened to me yet. My lungs are still breathing, my mouth is still talking, and my nose is still smelling. I can still use my tastebuds to taste things, and I can still play and learn. I haven't gotten sick yet, and I can still use my legs for P.E..
             If my cells aren't working, then I wouldn't function properly. Something probably would've happened to my nose, muscles, or something else in the body. Cells are the smallest unit of living things, and they help control your body. There are many different kinds of cells, for example: nerve cells. Nerve cells control nerves (hence the name) and muscle cells control your muscles. If anything ever happened to any of these cells, then your nerves or other things won't function right and will not help maintain your body.



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