Answer:
B) There would be less nitrogen in the system
Explanation:
How does bacteria affect the ecosystem?
Bacteria play important roles in the global ecosystem.
The cycling of nutrients such as carbon, nitrogen, and sulfur is completed by their ceaseless labor. Organic carbon, in the form of dead and rotting organisms, would quickly deplete the carbon dioxide in the atmosphere if not for the activity of decomposers.
source: Berkly.edu