Which of the following statements about productivity is true?A. Primary productivity of all ecosystems is a constant.B. The annual net primary productivity of the whole of the biosphere is 17 billion tons (dry weight) of organic matter.C. Net primary productivity is the amount of biomass available for consumption by carnivores.D. Primary productivity is depends on plant species inhabiting in a particular area.

Which of the following statements about productivity is true?A. Primar

1.	Which of the following statements about productivity is true?A. Primary productivity of all ecosystems is a constant.B. The annual net primary productivity of the whole of the biosphere is 17 billion tons (dry weight) of organic matter.C. Net primary productivity is the amount of biomass available for consumption by carnivores.D. Primary productivity is depends on plant species inhabiting in a particular area.
Answer» Correct Answer - D

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