Why do we say that all microorganisms are not harmful?? I want answer for class 8
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1
Answer:
- Many useful microbes live within our body (on our skin, in our gut, etc.), but they cannot attack the body. So, they are not pathogenic. Some microbes have weapon (virulence factor) to attack the body, but are easily defeated by our immune system.
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17
Answer:
Not all microbes are harmful. Some microbes like lactobacillus is used to make curds from milk. Cheese and vinegar are also produced with the help of bacteria. We say that all the microorganisms are not harmful as there are many microbes that are really useful to us.
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