Sunday, 7 October 2012

MICROORGANISMS AND DISEASES


Viruses, bacteria, many fungi, few algae and all protozoa are classified as microorganisms. The science which deals with their studies is called micro biology. Microorganisms are very small in size and can be seen with the help of a microscope. Microorganisms are unicellular, but a few are multicellular. They are found everywhere, in air, water, soil an the food we eat. They are present on our body surface, alimentary canal, mouth, nose and other body parts.

  Microorganisms affect the welfare of mankind in many ways, some are beneficial and others are harmful spoiling our food, water and cause diseases in mankind. Some of the microorganisms cause great damage to paper, textiles and other house hold items



                

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