All of the Following Are Mechanisms That Provide an Anoxic

question 53

Multiple Choice

All of the following are mechanisms that provide an anoxic environment for nitrogenase activity in cyanobacteria EXCEPT:

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

---

Definitions:

Quarterly Dividend

A dividend payment made to shareholders four times a year, each quarter.

Annually Compounded

Interest on an investment or loan calculated once a year and added to the principal sum for calculating future interest.

Quarterly Payment

Payments made every three months in a year, often used for loans, subscriptions, or service contracts.

Preferred Share

A class of ownership in a corporation that has a higher claim on its assets and earnings than common shares, typically with fixed dividends.