Net primary production is

A) energy made by autotrophs minus energy consumed by heterotrophs, and measured as biomass.
B) heterotrophic production minus autotrophic production per unit of land per unit of time.
C) heterotrophic production per unit of land per unit of time.
D) energy stored by secondary consumers from primary biomass.
E) energy that photosynthetic organisms make available to other organisms over a given period of time.


E

Biology & Microbiology

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