We studied several groups of organisms this semester, includ…

We studied severаl grоups оf оrgаnisms this semester, including bаcteria, fungi, protists, plants, and animals. Of these groups, nitrogen-fixers that convert atmospheric N2 to other forms are primarily [a]. Of these groups, which ones include many species of primary producers that carry out that contribute to NPP (net primary productivity; the amount of biomass primary producers acquire as a result of photosynthesis)? [c] The primary producers in most terrestrial ecosystems obtain the energy they use from [d]. How does the movement of energy through an ecosystem compare to the movement of nutrients through an ecosystem? [e]