what organisms are responsible for making nitrogen usable for plants?\nbacteria\nfungi\nproducers\ndecomposer…

what organisms are responsible for making nitrogen usable for plants?\nbacteria\nfungi\nproducers\ndecomposers\nwhy are food chains usually short?\nenergy is lost at each step\nproducers run out of space\npredators are too large\nprey migrate away
Answer
Brief Explanations:
Nitrogen - fixing bacteria convert atmospheric nitrogen into forms usable by plants. In food - chains, energy is lost as heat and for metabolic processes at each trophic level, limiting the length of food - chains.
Answer:
- A. Bacteria
- A. Energy is lost at each step