The Gaia Theory Says That

question 41

Multiple Choice

The Gaia Theory says that

• A)the biosphere contains a diversity of habitats and niches favorable to life because living things have made it that way.
• B)the complementary actions of respiration and photosynthesis have maintained a relatively stable atmospheric pool of carbon dioxide and oxygen.
• C)all living things must obtain nutrients and energy from their environment.
• D)all elements have their origin in a nonliving, long-term reservoir.
• E)ecosystems are open with regard to energy because the sun is constantly renewing them with a renewable source.

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Definitions:

Demand Function

A mathematical equation that describes the relationship between the quantity of a good that consumers are willing and able to purchase and its price.

Supply Function

A mathematical representation showing the amount of goods that producers are willing and able to sell at different prices, graphically depicted as a curve.

Price Ceiling

A government-imposed limit on how high a price can be charged for a product, primarily to keep it affordable for consumers.

Price

The anticipated financial cost, needed, or offered for a particular item or service.