阿摩線上測驗
60. The total biomass of photosynthetic autotrophs present in an ecosystem is known as the
(A) gross primary production
(B) trophic efficiency.
(C) secondary production
(D) standing crop.
(E) net primary production.
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統計： A(25), B(2), C(0), D(17), E(6) #2308390
統計： A(25), B(2), C(0), D(17), E(6) #2308390
