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These bacteria grow anaerobically on cel...

These bacteria grow anaerobically on cellulosic material, produce large amount of methane along with `CO_(2)` and `H_(2)`, and are collectively called as methanogens. Examples of such bacteria are

A

Methanobacterium

B

Methanobrevibacter

C

Methanococcus

D

all of these

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The correct Answer is:
D
Methanogens are microorganism that produce methane as a metabolic byproduct in anoxic contion. They include Methanobacterium, Methanobrevibacter and Methanococcus.
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