Answer: (B) Azotobacter
Explanation: Azotobacter is a genus of bacteria that are huge, free-living, Gram negative, obiigately aerobic, rod-shaped bacteria that can fix nitrogen non-symbiotically.
Answer: (B) Azotobacter
Explanation: Azotobacter is a genus of bacteria that are huge, free-living, Gram negative, obiigately aerobic, rod-shaped bacteria that can fix nitrogen non-symbiotically.