Select the mismatched option:
Correct answer: A. Rhodospirillum - Mycorrhiza
- A. Rhodospirillum - Mycorrhiza
- B. Anabaena - Nitrogen fixer
- C. Rhizobium - Alfalfa
- D. Frankia - Alnus
Explanation
Rhodospirillum is a free-living nitrogen-fixing bacteria. Mycorrhiza is the symbiotic association between fungi and roots of higher plants. The most common fungal partners of mycorrhiza are Glomus species.
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About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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