Visit related websites:

http://www.en.wikipedia.org/wiki/Microorganism http://www.microorganisms.com http://www.dictionary.reference.com/browse/microorganisms http://www.microbeworld.org/microbes/bacteria http://www.britannica.com/eb/article-9037947/green-algae http://www.microbeworld.org/microbes/protista/protozoa.aspx http://www.en.wikipedia.org/wiki/Fungus http://www.en.wikipedia.org/wiki/Virus