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Multiple choice

Both Rhizobium and Frankia are symbionts

  1. Free living in soil

  2. But as symbionts can fix atmospheric Nitrogen

  3. Both

  4. None

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Both Rhizobium and Frankia are soil bacteria that can fix atmospheric nitrogen when they form symbiotic relationships with host plants.

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