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WAEC Biology 2007 Question 48

Question 48

Nutrient Cycling

Which of the following bacteria lives in the root nodules of leguminous plants?

  1. A.Azotobacter
  2. B.Nitrobacter
  3. C.Rhizobium
  4. D.Nitrosomonas
Show the answer and explanation

Answer: C (Rhizobium)

Explanation

Rhizobium lives in the root nodules of legumes and fixes nitrogen; Azotobacter is free-living.