A. How energy flows through a food web
B. The number of species in each tropic level
C. The biomass of all organisms at each tropic level in a system
D. The number of tropic levels in a system
✅ The correct answer is option D.
Biomass pyramids show how much biomass (the amount of living or organic matter present in an organism) is present in the organisms at each trophic level, while productivity pyramids show the procreation or turnover in biomass.
Biomass pyramids show how much biomass (the amount of living or organic matter present in an organism) is present in the organisms at each trophic level, while productivity pyramids show the procreation or turnover in biomass.