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Question

The net primary productivity of an ecosystem is


A

Total weight of green plants-respiratory losses

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B

Total weight of green plants+Respiratory losses

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C

Respiratory losses alone

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D

None of the above

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Solution

The correct option is A

Total weight of green plants-respiratory losses


The total stored energy in the form of organic matter is called net primary productivity (NPP). The rate of energy production by green plants during photosynthesis is called as gross primary production (GPP). Net primary production is calculated after deducting the loss of organic matter during respiration.


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