The nonsymbiotic bacteria which fix nitrogen live in the soil independently are
A. Azotobacter
B. Clostridium
C. considerably less important in comparison to the symbiotic bacteria
D. all of the above
Answer:D
The nonsymbiotic bacteria which fix nitrogen live in the soil independently are
A. Azotobacter B. Clostridium C. considerably less important in comparison to the symbiotic bacteria D. all of the above