🔬 Biology · Biological Classification · NEET

Which of the following organisms is responsible for producing biogas, and survives in marshy areas and the gut of ruminants?

A Methanogens
B Nostoc
C Penicillium
D Plasmodium

Correct answer: A. Methanogens

Explanation: Methanogens are archaebacteria found in the gut of ruminant animals (cattle, buffaloes) and marshy areas; they produce methane, a major component of biogas.

Concept context

Whittaker's five kingdom system covering Monera, Protista, Fungi, plus viruses, viroids, and lichens. A foundational NEET chapter on how living organisms are grouped.

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Which of the following organisms is responsible for producing biogas, and survives in marshy areas and the gut of ruminants?

Concept context

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