Drifting Freely in the Upper, Well-Illuminated Waters of the Ocean

question 2

Multiple Choice

Drifting freely in the upper, well-illuminated waters of the ocean, a diverse biological community exists, primarily consisting of microscopic organisms called

• A)phytoplankton.
• B)archaeans.
• C)detritus.
• D)benthos.

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Definitions:

Units of X

A measure or quantity of something, especially as a standard for measurement of the same items.

Income

The money received by an individual or business in exchange for labor, services, or investment, constituting the financial gain derived from various sources over a period of time.

Budget Line

A graphical representation of all possible combinations of two goods or services that a consumer can purchase at given prices within his or her budget constraint.

Commodity 1

A basic good used in commerce that is interchangeable with other goods of the same type.