Why Is Net Primary Production (NPP) a More Useful Measurement

question 51

Multiple Choice

Why is net primary production (NPP) a more useful measurement to an ecosystem ecologist than gross primary production (GPP) ?

• A) NPP can be expressed in energy per unit of area per unit of time.
• B) NPP can be expressed in terms of carbon fixed by photosynthesis for an entire ecosystem.
• C) NPP represents the stored chemical energy that will be available to consumers in the ecosystem.
• D) NPP is the same as the standing crop.
• E) NPP shows the rate at which the standing crop is utilized by consumers.

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Definitions:

Semi-Annual Payments

Payments made twice a year, often used in the context of loans, bonds, or other financial instruments.

Perpetuity

An annuity that pays a constant sum to an individual indefinitely, often used as a theoretical model in finance.

Semi-annually

A term used to describe something that occurs or is done twice a year.

Compounded

The process by which an investment earns interest on both the original principal and the accumulated interest from previous periods.