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  • In an ecosystem the rate of production of organic matter during photosynthesis is termed as:Option: 1 Secondary productivity<div class=

In an ecosystem the rate of production of organic matter during photosynthesis is termed as:

Option: 1

Secondary productivity


Option: 2

Net productivity


Option: 3

Net primary productivity


Option: 4

Gross primary productivity


Answers (1)

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The rate of photosynthesis or chemosynthesis is referred to as gross primary productivity. Net primary production (NPP) is the rate at which all plants in an ecosystem generate net useful chemical energy; it is equivalent to the difference between the rate at which plants yield useful chemical energy (GPP) and the rate at which they utilize some of that energy during respiration. Gross primary production (GPP) is the quantity of chemical energy produced as biomass by primary producers in a specific time frame.

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Divya Prakash Singh

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