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Firstly, many bacteria are pathoges, and so can directly cause disease. For example, the bacteria known as Salmonella causes food poisoning.
Secondly, bacteia compete with us for food, and so tend to eat the food which we eat, there by making it unedible for us.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoThey can cause infection or poison(salmonella)...
Wiki User
∙ 13y ago1. you may get sick
2. IT affects your body weight
3.Can cause diseases
Bacteria still keeps us living healthy because it is critical for our digestion.
Wiki User
∙ 11y agokjgkg
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bootymeat
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1. we use it to produce inculin 2. 3. ;D
