Which of the following statements concerning the endosymbiotic theory is FALSE?

Question

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The statement "Eukaryotes were formed from the union of small anaerobic cells by larger aerobic cells" is incorrect. The endosymbiotic theory proposes that eukaryotes evolved through the incorporation of smaller prokaryotic cells by larger host cells, with the prokaryotes eventually becoming the mitochondria and chloroplasts of eukaryotic cells. The original cells were not necessarily anaerobic or aerobic.

Which of the Following Statements Concerning the Endosymbiotic Theory Is