Which of the Following Is NOT a Potential Reason Anoxic

question 14

Multiple Choice

Which of the following is NOT a potential reason anoxic methane-oxidizing Archaea have not also acquired the ability to reduce sulfate?

• A) An individual electron acceptor such as sulfate is not always present where methane is.
• B) Minimizing the metabolic requirements of the archaeon's genome size provides flexibility to interact with other reducing bacteria, such as nitrate reducers.
• C) The archaeon-bacterium relationship yields more energy from methane oxidation/sulfate reduction when performed together than separately.
• D) The methane-oxidizing Archaea will not easily acquire this metabolic capability from the bacterial partner.

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