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The flu is a disease caused by the flu virus. Many other diseases, like pneumonia, are caused by bacteria. Do all microorganisms cause harm to the human body?

User Steve Weet
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Answer:

No, many microorganisms, like those in your gut, are beneficial.

Step-by-step explanation:

User RyanLiu
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Answer:

Not all kinds of microorganisms are harmful there are certain kinds of bacteria live in the large intestine help in breaking down the remains and other kinds of useful bacteria

Step-by-step explanation:

User Mike DeSimone
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