Bacteria that get their energy by fermentation and oxygen is lethal for them are called:
A
obligate aerobes
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B
obligate anaerobes
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C
facultative aerobes
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D
facultative anaerobes
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Solution
The correct option is B obligate anaerobes
Obligate anaerobes are the organism which can remain stable in low oxygen level. They are microorganisms which are killed by normal atmospheric concentrations of oxygen. The require the anaerobic conditions. So the correct option is 'obligate anaerobes'.