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Discovery of Micro-organism

Millions of organisms are present around us .Many of them cannot be viewed with our naked eyes and can only be seen under a microscope. These are called micro-organisms or microbes.


Example : Bacteria and viruses.


Microorganisms live almost everywhere – in the air, water, soil and even inside other organisms. Many live within our body. Some of them are useful while others are harmful and cause diseases in other living organisms.

There are five major groups of microorganisms. They are :

a) Bacteria


b) Viruses (Singular : virus)


c) Protozoa


d) Fungi


e) Algae




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