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Question

(C) Gross primary productivity $(GPP)$ is the total amount of organic matter produced by producers through photosynthesis in an ecosystem per unit are

Vedclass · Accepted Answer

Gross primary productivity is always more than net primary productivity.

Vedclass · Answer

(C) Gross primary productivity $(GPP)$ is the total amount of organic matter produced by producers through photosynthesis in an ecosystem per unit area over a time period.Net primary productivity $(NPP)$ is the amount of biomass available for consumption by heterotrophs after accounting for the energy lost by producers during respiration $(R)$.The relationship is defined by the equation: $NPP = GPP - R$.Since respiration $(R)$ is always a positive value,$GPP$ must always be greater than $NPP$.

In relation to Gross primary productivity and Net primary productivity of an ecosystem,which one of the following statements is correct?

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