Chapter 2: Microorganisms: Friend and Foe

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Microorganisms: Friend and Foe


Write a short paragraph on the harmful effects of microorganisms.


Microorganisms play an important role in our lives. Some of them are beneficial and some are harmful and cause disease in human beings, animals, and plants. Some harmful microorganisms are protozoa, fungi, bacteria, etc and these disease-causing microorganisms are called pathogens. These pathogens can cause harmful diseases like cholera, common cold, tuberculosis, etc. They can spoil food, clothes, and plants that can reduce the yield of crops.

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