The association of nodule bacteria with leguminous roots is known as:
Correct answer: B. Symbiosis
- A. Saprophytism
- B. Symbiosis
- C. Epiphytism
- D. Parasitism
Explanation
Rhizobium and related nodule bacteria live in legume root nodules and receive carbohydrates from the plant while fixing atmospheric nitrogen for it. This mutually beneficial relationship is symbiosis, not parasitism or saprophytism.
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