Gross Primary Productivity Is the Rate

question 161

Multiple Choice

Gross primary productivity is the rate

• A) at which producers manufacture chemical energy through photosynthesis.
• B) at which producers use chemical energy through respiration.
• C) at which producers manufacture chemical energy minus energy used through respiration.
• D) at which chemical energy is transferred from one trophic level to the next.
• E) at which consumers use chemical energy through respiration.

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Definitions:

Utility

A measure of satisfaction or happiness that consumers derive from the consumption of goods and services.

Perfect Substitutes

Two goods that could be used in place of each other with no loss of utility to the consumer.

Perfect Complements

Goods that are always used together in fixed proportions, where the consumption of one good requires the consumption of a specific quantity of another good.

Indifference Curves

Graphs representing combinations of goods among which a consumer is indifferent, showing trade-offs in consumption preferences.