11:3811:38, 8 June 2011diffhist−73
Protozoa
Removed sentence on scientific use, since it contradicts the Wikipedia article on biological classification.
11:1911:19, 8 June 2011diffhist+301
Protozoa
Added singular form "protozoon" and explained the current use of "protozoon"/"protozoan"
6 June 2011
14:0214:02, 6 June 2011diffhist−229
Cyanide poisoning
Removed excessive and unnecessary "citation needed" tags, where references are already in the text/linked texts but maybe a half paragraph below.