The total biomass of photosynthetic autotrophs present in an ecosystem is known as
A) gross primary productivity.
B) standing crop.
C) net primary productivity.
D) secondary productivity.
E) trophic efficiency.

Question

Quizplus · Accepted Answer

Standing crop refers to the total biomass of photosynthetic autotrophs present in an ecosystem. Gross primary productivity (A) refers to the total amount of organic matter produced by plants through photosynthesis. Net primary productivity (C) is the amount of organic matter produced by plants after accounting for the energy they use during respiration. Secondary productivity (D) refers to the amount of organic matter produced by heterotrophs. Trophic efficiency (E) is the percentage of energy transferred from one trophic level to the next.

The Total Biomass of Photosynthetic Autotrophs Present in an Ecosystem