Question: Why is only some of Bacteria harmless?

Asked by ally11 to Miranda on 17 Mar 2013. This question was also asked by disease357.

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  1. Photo: Miranda WeenMiranda Ween
    answered on 17 Mar 2013:

    some bacteria ias actually good for us! We have bacteria in our gut which helps break down our food as it passes through. They can also attack disease causing bacteria.

    Then there are other bacteria which we might ingest or inhale, but they aren’t very good at making us sick in small numbers, so the body can fight them off before there are enough of them to make us sick

    does that make sense?

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Comments

  1. Photo: ally11ally11
    commented on 20 Mar 2013:

    Wow! some bacteria is good for us!

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