- (E) Primary productivity is the amount of biomass produced through
photosynthesis per unit area per time by plants. Gross primary productivity
is the total energy fixed by plants through photosynthesis. A portion of the
energy of gross primary productivity is used by plants for respiration.
Respiration provides a plant with the energy needed for various activities.
Subtracting respiration from gross primary productivity gives net-primary
productivity, which represents the rate of production of biomass that is
available for consumption by heterotrophic organisms.
marvins-underground-k-12
(Marvins-Underground-K-12)
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