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What do blood cells do?

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That depends on which blood cells! Our white blood cells is what I am guessing you are asking about. They are the one's that swim in our blood an fight unkown bacteria and viruses they find. White blood cells are what are created by our lymph nodes and protect us and keep us healthy. I do however engourage you to do some research on this and still take other answers.

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First answer by Pathologistudent. Last edit by Pathologistudent. Contributor trust: 86 [recommend contributor]. Question popularity: 7 [recommend question]

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