discuss three important ways in which bacteria are useful to us and two ways in which they are harmful....
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Digestion is helped in by bacteria E. coli, Nitrogen is converted in by Rhizobium and antibiotics can be made by Streptomyces. Bacteria can cause harmful diseases like pneumonia or meningitis. They can also cause food poisoning by contaminating the food by their presence.
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bacteria are useful to us
1- Killing plant pest
2- making biogas such as methane
3- making antibiotics and vaccines
bacteria are harmful to us
1- bacteria can cause disease in our body such as chlora and tuberculosis .
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