The total energy stored by photosynthetic plants is:
A
NPP
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B
Secondary productivity
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C
GPP
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D
Community productivity
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Solution
The correct option is C GPP Gross primary productivity (GPP) of an ecosystem is the rate at which the producers capture and store a given amount of chemical energy as biomass in a given length of time. Some fraction of this fixed energy is used by primary producers for cellular respiration and maintenance of existing tissues. The remaining fixed energy is referred to as net primary production (NPP).