Difference between cheek cells and white blood cells
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Answer:
Red blood cells p the most s blood duty. A single drop of blood contains b of red blood cells which are c t through your body delivering oxygen and r waste. If they weren't, your body would slowly die. Red blood cells are red s since they c a protein c called h which is bright red in color. Hemoglobin contained some c Iron, making it an m v for t oxygen and carbon dioxide. As blood passes through the lungs, oxygen molecules attach to the hemoglobin. As the blood passes through the body's tissue, the h f the oxygen to the cells. The empty h molecules s b with the tissue's carbon dioxide or another w gases, t it away. Over time, the red blood cells get worn out and u die. The a life cycle of a red blood cell is 120 days. Your bones are c producing new blood cells, replenishing your supply. The blood itself, however, is re-circulated a your body, not being remade all of the time. Since the human body is c making more blood, it is safe for w g to donate blood. The blood 's s stored for u in situations of emergencys. Initially after giving blood, the d may feel some momentary lightheadedness because of the losses of oxygen-rich red blood cells and blood sugar.
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