Multiple choice

Which of the following bacteria are examples of free-living nitrogen fixers?

  1. Rhizobium 2. Beijerinckia 3. Bradyrhizobium 4. Azomonas 5. Azotobacter

  1. 1, 2 and 3

  2. 1, 3 and 5

  3. 2, 3 and 4

  4. 2, 4 and 5

  5. 3, 4 and 5
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Beijerinckia, Azomonas and Azotobacter: All are free-living nitrogen fixers.

Keep practicing — related questions