All of the Following Are Mechanisms That Provide an Anoxic

question 35

Multiple Choice

All of the following are mechanisms that provide an anoxic environment for nitrogen fixation in cyanobacteria EXCEPT

• A) formation of heterocysts.
• B) formation of chlorosomes.
• C) temporal separation of photosynthesis and nitrogen fixation.
• D) accumulation of large aggregates of cells.
• E) symbiotic associations with fungi or plants.

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