Which of the Following Is the Best Potential Reason That

question 31

Multiple Choice

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

• A) Sulfate is toxic to these archaeans.
• B) Having fewer metabolic capabilities decreases the archaeonʹs genome size and gives it flexibility to interact with other reducing bacteria, such as nitrate bacteria.
• C) The archaeans are too rare to survive without the bacteria.
• D) The methane-oxidizing Archaea are not capable of acquiring this metabolic capability.

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