Medical Quiz

Topics: Bacterial Growth and Culturing Conditions Quiz

Which domain of life includes organisms that live in extreme environments?

A. Bacteria

B. Archaea

C. Eukarya

D. All of the above

Select your answer:
     


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What is the role of nitrogen-fixing bacteria in the nitrogen cycle?

A. They fix carbon dioxide into organic molecules

B. They fix nitrogen gas into ammonia

C. They fix nitrogen gas into oxygen

D. They fix oxygen gas into water