Answer: (D) All of these
Explanation: A nitrogen-fixing symbiotic relationship with the cyanobacterium Anabaena and it satisfies the plant’s nitrogen requirements.So, ‘Nostoc, Anabaena, Oscillatoria’ is the answer.
Answer: (D) All of these
Explanation: A nitrogen-fixing symbiotic relationship with the cyanobacterium Anabaena and it satisfies the plant’s nitrogen requirements.So, ‘Nostoc, Anabaena, Oscillatoria’ is the answer.