Which of the Following Could Describe the Relationship Between the Cyanobacterium

question 4

Multiple Choice

Which of the following could describe the relationship between the cyanobacterium Nostoc and E.coli related to the carbon cycle?

• A) Nostoc produces carbohydrates from lithotrophy, and E. coli breaks down the carbohydrates to generate CO₂.
• B) Nostoc produces carbohydrates from phototrophy, and E. coli breaks down the carbohydrates to generate CO₂.
• C) Nostoc produces CO₂ that E. coli turns into carbohydrates.
• D) E. coli produces carbohydrates that Nostoc uses as energy to produce more carbohydrates.

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