This comprises not only bacteria, but also archaea, protists, fungi, as well as some animals and plants!
Good suggestion Hannes! Why don't you implement them?
Also, I have made a redirect so that it doesn't matter whether one writes micro organism or microorganism. Both words will lead to a single page. You can do a Help:REDIRECT yourself.
--Anna Bauer 21:14, 10 March 2008 (CET)