Which of the Following Statements Is True

question 63

Multiple Choice

Which of the following statements is true?

• A) An ecosystem's trophic structure determines the rate at which energy cycles within the system.
• B) At any point in time, it is impossible for consumers to outnumber producers in an ecosystem.
• C) Chemoautotrophic prokaryotes near deep-sea vents are primary producers.
• D) There has been a well-documented increase in atmospheric nitrogen over the past several decades.
• E) The reservoir of ecosystem phosphorous is the atmosphere.

---

Definitions:

Diameter

Straight line extending across the center of a circle from circumference to circumference. The diameter of a circle is two times its radius.

Potential Difference

The difference in electric potential between two points, which drives the flow of electric current in a circuit.

Conventional Theory

In electrical engineering, it refers to the theory that assumes current flows from the positive to the negative terminal, opposite to electron flow.