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A prokaryote is most likely to use which of the following modes of metabolism to release energy if it is in an environment without oxygen, dies when exposed to oxygen, and uses fermentation?

APhotoautotroph
BFacultative anaerobe
CObligate anaerobe
DHeterotroph   <---- is the right answer

Verified Answer :

MissPhiladelphia

Most heterotrophs are chemoorganoheterotrophs (or simply organotrophs) who utilize organic compounds both as a carbon source and an energy source. The term "heterotroph" very often refers to chemoorganoheterotrophs. Heterotrophs function as consumers in food chains: they obtain organic carbon by eating autotrophs or other heterotrophs. Most opisthokonts and prokaryotes are heterotrophic

tanealclevenger

The right answer to this question is D. Heterotroph

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