Microbial contribution towards human welfare

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Kunwali Das
Rezina Ahmed


The microorganism is a broad term which includes bacteria, protozoa, fungi, viruses, some algae, viroid and prions. An environment without microbes is next to being incomplete. The earth is home to a trillion species of microorganisms with human bodies hosting a huge number of them. Microbes are minute particles invisible to the naked eye which can be very beneficial to the environment and on the other hand, may pose a serious threat. Microorganisms may require a host for its survival or may replicate outside of any host. The size of the microorganism varies from 10 nm to 1 millimetre.


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