I really hate the use of that word “simple” when talking about microorganisms and bacteria in particular. It is also possible to make the case that the archeae are actually “simpler” even though they are more closely related to the presumably less simple/more complex eukaryotes. If you have not yet read it I highly recommend O’Malleys book linked below. Really excellent couple of chapters on microorganism classification that touches on these points.

Also, a very short piece I wrote below linked talking about a really tiny aspect of the book. I have been meaning to get around to more but have not had the time to dedicate to it.

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Research scientist (Ph.D. micro/mol biology), Thought middle manager, Everyday junglist, Selecta (Ret.), Boulderer, Cat lover, Fish hater

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