Briefly explain why "Bacteria are harmful to human beings"
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There are two ways bacteria can harm the human body: toxicity – the bacteria produce toxins which damage specific tissues in the body. invasiveness – the bacteria multiply rapidly at the site of infection and overwhelm the body's defence mechanisms. The bacteria may then spread to other parts of the body.
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Though there are many more good bacteria than bad, some bacteria are harmful. If you consume or come in contact with harmful bacteria, they may reproduce in your body and release toxins that can damage your body's tissues and make you feel ill.
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