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Which of these can live either with oxygen or without it?

A. facultative anaerobes
B. obligate anaerobes
C. obligate aerobes
D. bacteriophages

1 Answer

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A. facultative anaerobes

Facultative anaerobes, can grow without oxygen but if oxygen is present; then, it will use the oxygen.

Letter B. is harmed when oxygen is present.
Letter C. its life is dependent on the presence of oxygen
Letter D. a virus that is dependent on the lifespan of the bacteria it is attached to. If the bacteria can't survive in oxygen, bacteriophages will die too.
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