1.

How microorganisms are harmful to us give at least three points​

Answer»

Answer:

  1. A few harmful microbes, for example, less than 1% of BACTERIA, can INVADE our BODY (the host) and make us ill.
  2. Microbes cause infectious diseases such as flu and measles.  
  3. Different diseases are CAUSED by different types of micro-organisms. Microbes that cause disease are CALLED pathogens.

Explanation:

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