Concepts Explored: Trophic levels, food webs, biogeochemical cycles, human impac
Concepts Explored: Trophic levels, food webs, biogeochemical cycles, human impac Concepts Explored: Trophic levels, food webs, biogeochemical cycles, human impact on biogeochemical cycles. Experiment: In this set of procedures you will measure mushroom yield under various conditions. You will study how levels of concentration of nitrate, heavy metals, and pH affect mushroom yield in separate