Which of the Following Best Distinguishes Deltaproteobacteria from Epsilonproteobacteria

question 10

Multiple Choice

Which of the following best distinguishes deltaproteobacteria from epsilonproteobacteria?

• A) Deltaproteobacteria are most commonly found at anoxic-oxic interfaces while epsilonbacteria are most commonly found in anoxic environements.
• B) Many epsilonbacteria oxidize sulfur compounds, which could be produced by a sulfur-reducing deltaproteobacterium.
• C) A sulfate-reducing epsilonbacterium produces sulfite, which a deltaproteobacterium reduces further to hydrogen sulfide.
• D) An epsilonbacterium reduces sulfur compounds whereas all deltaproteobacteria oxidize sulfur compounds.

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