To Recycle Nutrients, an Ecosystem Must Have, at a Minimum

question 32

Multiple Choice

To recycle nutrients, an ecosystem must have, at a minimum,

• A) producers.
• B) producers and decomposers.
• C) producers, primary consumers, and decomposers.
• D) producers, primary consumers, secondary consumers, and decomposers.
• E) producers, primary consumers, secondary consumers, top carnivores, and decomposers.

---

Definitions:

Progressive Tax System

A tax that increases as income increases; the percentage or rate increases.

Income

The money received, especially on a regular basis, for work or through investments.

Head of Household

A filing status for individual U.S. taxpayers who are unmarried and pay more than half the cost of maintaining a home for themselves and a qualifying person.

Total Income

The sum of all earnings or revenues received by an individual or organization, before any deductions or taxes.