A free living anaerobic bacterium capable of fixing nitrogen is

A free living anaerobic bacterium capable of N_(2) fixation in soil is

A free-living bacterium capable of fixing nitrogen is: (a) Rhizobium (b) Streptococcus (c) Pseudomonas (d) Azotobacter

An anaerobic bacterium capable of nitrogen fixation is

A free - living soil bacterium capable of N_(2) fixation is

A free - living soil bacterium capable of N_(2) fixation is

An anaerobic bacterium capable of atmospheric N-fixation is:

An anaerobic bacterium capable of atmospheric N_2 -fixation is :

A free living anaerobic nitrogen fixing bacterium is :

A free living anaerobic nitrogen fixing bacterium is :

The bacterium capable of anaerobic N_2 fixations known as