Which of the Following Is a Primary Consumer

question 93

Multiple Choice

Which of the following is a primary consumer?

• A) A predatory fish
• B) A detritus-eating roundworm
• C) An oak tree
• D) A herbivorous beetle larva
• E) None of the above

---

Definitions:

Irving Fisher

An American economist known for his contributions in the fields of economics and statistics, including the theory of interest and the Fisher equation.

Proprietors' Income

The income earned by the owners of unincorporated businesses.

Capitalist Income

The earnings from capital investment, including profits, interest, and dividends, attributed to owners in a capitalist economy.

Unionism

The principles, practices, or the system of forming and belonging to a labor union to protect and further the rights and interests of workers.