MICRO-ORGANISMS

SUMMARY
• Micro-organisms are unicellular or multicellular organisms which cannot be seen
clearly with the naked eye.
• The main micro-organism categories are bacteria, fungi, algae and protozoa.
• Viruses have living and non-living characteristics but, they are also studied in
microbiology.
• Micro-organisms live within all the eco-systems with favorable environmental
conditions and even under the extreme environmental conditions.
• Micro-organisms are used in various fields such as agriculture, medicine,
industries and for environmental conservation as well.
• Food spoilage, diseases, damage done to the economically important surfaces
and use of micro-organisms as biological weapons are some adverse effects of
micro-organisms.