Question

What is the difference between net primary productivity (NPP) and gross primary productivity (GPP)?(1 point)Both NPP and GPP refer to the energy used by plants, there is no differenceGPP is the rate of decomposition in an ecosystem, whereas NPP is the energy captured by plantsNet primary productivity (NPP) considers energy used in respiration, while gross primary productivity (GPP) does notNPP is the total amount of energy captured by plants, and GPP is the energy available to consumers

Answer 1

Net primary productivity (NPP) considers energy used in respiration, while gross primary productivity (GPP) does not. (GPP = total energy fixed by photosynthesis; NPP = GPP − autotrophic respiration.)