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Increases in Atmospheric Oxygen Benefitted Early Eukaryotes

Question 135

Multiple Choice

Increases in atmospheric oxygen benefitted early eukaryotes.Which statement concerning this phenomenon is false?


A) It killed off numerous prokaryotes, thus reducing competition for resources.
B) It became an essential component of energy metabolism.
C) The flexible cell membrane allowed acquisition of more oxygen through diffusion.
D) Increased energy facilitated development of more cellular complexity.
E) Oxygen could be eliminated by contractile vacuoles.

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