Which of the Following Best Explains Why an Ecosystem That

question 52

Multiple Choice

Which of the following best explains why an ecosystem that exhibits very low net primary production [NPP, measured as J/(m2 x year) ] could still represent one of the ecosystems that contributes the most to global net primary production?

• A) Ecosystems with very low NPP may cover vast areas of the Earth's surface.
• B) Ecosystems with very low NPP may have tight recycling of energy.
• C) Low NPP ecosystems often store a lot of heat.
• D) Higher NPP ecosystems are often located at latitudes where sunlight is less intense.

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