Question

The mass of living material at a trophic level at a particular time is called :

• A. Standing crop
• B. Gross primary productivity
• C. Standing state
• D. Net primary productivity

Answer 1

The correct option is A Standing crop

The biomass of living material at a trophic level at a particular time is called is called standing crop.
Gross Primary productivity, which is the rate at which photosynthesis or chemosynthesis occurs.
Net Primary Productivity (NPP) is the amount of carbon uptake after subtracting Plant Respiration (RES) from Gross Primary Productivity (GPP)