Germs only cause disease, right? But a common bacterium, E. Coli, found in the intestine helps us digest green vegetables and beans (also making gases - pew!). These same bacteria also make vitamin K, which causes blood to clot. If we didn't have these germs we would bleed to death whenever we got a small cut!
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Facts about the Human Body
RandomIt says it all in the title I do not own any of these facts, I got them off the internet
