The net photosynthesis for an entire ecosystem is known as the A)net primary productivity. B)free air CO₂ enrichment. C)net photosynthesis. D)compensation point.

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Net primary productivity (NPP) is the rate at which plants or autotrophs in an ecosystem produce organic matter through photosynthesis, minus the rate at which they use some of that organic matter through respiration. NPP provides a measure of the energy available to the rest of the ecosystem, including herbivores and carnivores.

The Net Photosynthesis for an Entire Ecosystem Is Known as the