The net primary productivity of an ecosystem is 1 kg C/m2/year, and the energy needed by the producers for their own respiration is 1.5 kg C/m2/yr. The gross primary productivity of such an ecosystem would be
A)2.5 kg C/m2/yr
B)1.5 kg C/m2/yr
C)0.5 kg C/m2/yr
D)1.0 kg C/m2/yr
E)2.0 kg C/m2/yr
Answer: A
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