A bacterium found in the root nodules of leguminous plants is the:
Correct answer: D. Rhizobium
- A. Clostridium
- B. Azotobacter
- C. Nitrobacter
- D. Rhizobium
Explanation
Rhizobium lives in the root nodules of leguminous plants and fixes atmospheric nitrogen into forms the plant can use. Azotobacter is also nitrogen-fixing but normally lives freely in the soil rather than in root nodules.
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