Q. Statement I: Monera is a kingdom of prokaryotes. Mycoplasmas are the sole members of the kingdom Monera.
Statement II: Methanogens are present in the gut of several ruminant animals such as cows and buffaloes and they are responsible for the production of biogas from the dung of these animals.

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Solution:

Monera is a kingdom of prokaryotes. Bacteria are the sole members of Monera.