Question

13 multiple choice 1 point
in the nitrogen cycle, nitrogen has to be converted into a usable form. which organisms are responsible for this process?
nitrogen-fixing bacteria
dna and proteins made by animals
nitrogenous plants
fungal decomposers

Explanation:

Nitrogen fixation is the process that converts atmospheric nitrogen into a form usable by living organisms. Nitrogen-fixing bacteria perform this key step in the nitrogen cycle. The other options are incorrect: animal DNA/proteins use fixed nitrogen but don't convert atmospheric nitrogen, there are no "nitrogenous plants" that fix nitrogen (some plants host nitrogen-fixing bacteria but don't do the conversion themselves), and fungal decomposers break down nitrogen-containing organic matter rather than fix atmospheric nitrogen.

Answer:

nitrogen-fixing bacteria