BQ: Are all bacteria Protists?
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Bacteria aren't protists. Protists are eukaryotes. They are mostly single celled eukaryotic organisms. Their classification is contested in modern taxonomy but that is basically what the historical term meant.
"The protists do not have much in common besides a relatively simple organization[3]—either they are unicellular, or they are multicellular without specialized tissues. This simple cellular organization distinguishes the protists from other eukaryotes, such as fungi, animals and plants."
http://en.wikipedia.org/wiki/Protist
"The protists do not have much in common besides a relatively simple organization[3]—either they are unicellular, or they are multicellular without specialized tissues. This simple cellular organization distinguishes the protists from other eukaryotes, such as fungi, animals and plants."
http://en.wikipedia.org/wiki/Protist