The Organisms That Produced the Oxygen Gas in Earth's Early

question 122

Multiple Choice

The organisms that produced the oxygen gas in Earth's early atmosphere were

• A) anaerobic eukaryotes.
• B) aerobic eukaryotes.
• C) photosynthetic prokaryotes.
• D) aerobic prokaryotes.
• E) completely unlike modern organisms.

---

Definitions:

Direct Expenses

Costs that can be directly traced to the production of specific goods or services.

Investment Turnover

A measure that shows how frequently investment assets are bought and sold within a given period.

Cost Center

A department or unit within an organization that does not directly add to profit but still incurs costs, such as HR or IT department.

Service Departments

Units within a company that provide support services to other departments but do not directly generate revenue.