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Write the relationship between productiv...

Write the relationship between productivity, gross primary productivity, net primary productivity, net primary productivity and secondary productivity.

A

Rate of increase in the biomass of autotrophs

B

Rate of increase in biomass of heterotrophs

C

The rate at which the organic molecules are formed in an autotrophs

D

The rate at which the organic molecules are used in an autotrophs

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The correct Answer is:
B
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