The Methanogens

question 20

Multiple Choice

The methanogens

• A) are part of the domain Archaea AND appear only in aerobic environments.
• B) oxidize hydrogen gas to produce methane AND appear only in aerobic environments.
• C) use oxygen as a terminal electron acceptor AND appear only in aerobic environments.
• D) use oxygen as a terminal electron acceptor AND oxidize hydrogen gas to produce methane.
• E) are part of the domain Archaea AND oxidize hydrogen gas to produce methane.

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