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You Have Isolated a Bacterium That Grows in a Medium

Question 13

Multiple Choice

You have isolated a bacterium that grows in a medium containing only inorganic nutrients. Ammonia is oxidized to a nitrate ion. This bacterium is

A) gram-negative.
B) using anaerobic respiration.
C) a chemoautotroph.
D) a photoheterotroph.
E) a photoautotroph.

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