Are Bacteria or Archea ancestor of eukaryotes?

These findings inspired the hypothesis that the archaeal ancestor of eukaryotes was an unusually complex form with an elaborate intracellular organization. ... To begin with, a typical eukaryotic cell has a three to four orders of magnitude larger volume than most bacteria and archaea [3–5]

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I used g      o       o       g      l    e

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plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.