Which of the following best describes the net primary productivity of an ecosystem? Net primary productivity is the amount of energy captured by producers through photosynthesis over time.
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Net primary productivity is the amount of energy lost by producers through respiration over time.
Net primary productivity is the amount of energy lost through respiration by producers subtracted from the gross primary productivity of an ecosystem.
Net primary productivity is the amount of energy lost through respiration by producers added to the gross primary productivity of an ecosystem.