The idea of the productivity of an ecosystem can be obtained from:

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

The rate of formation of new organic matter by a rabbit in a grassland is called:

The rate of formation of new organic matter by consumers is .........

Regarding the Gross Primary Productivity $(GPP)$ and Net Primary Productivity $(NPP)$ of an ecosystem,which of the following statements is correct?

Net primary productivity is utilised by