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Gross Primary Productivity
The total amount of solar energy that producers in an ecosystem capture through photosynthesis over a certain amount of time
Net Primary Productivity
Gross Primary Productivity minus the amount of energy it takes to respire
Biomass
Total mass of all living things in a specific area
Trophic Pyramid
Represents the distribution of biomass among trophic levels
Photosythesis
The way plants use light to make energy
Respiration
The way living organisms released stored energy
Species diversity
the variety of different species that are in a certain area
equation for net primary productivity
NPP = GPP - R
equation for gross Primary Productivity
GPP = NPP + R
Autotroph
an organism that could make its own food
