Net primary productivity represents:
A) plant growth per unit area per unit time.
B) energy per unit area per unit time.
C) the energy available to herbivores.
D) amount of biomass found in excess of that broken down by a plant's cellular respiration.
E) All of these choices are correct

Question

Quizplus · Accepted Answer

Net primary productivity encompasses all these aspects: it is a measure of plant growth, energy accumulation, and the energy available to herbivores, all per unit area per unit time, minus the energy used in plant respiration, thus representing the excess biomass.

Net Primary Productivity Represents