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A free living nitrogen fixing cyanobacterium, which can also form symbiotic association with the water fern Azolla is
Options
(a) Tolypothrix
(b) Chlorella
(c) Nostoc
(d) Anabaena
Correct Answer:
Anabaena
Explanation:
Anabaena is a genus of filamentous cyanobacteria that exist as plankton. They are known for nitrogen-fixing abilities, and they form symbiotic relationships with certain plants, such as the mosquito fern.
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Topics: Diversity In Living World
(339)
Subject: Biology
(4253)
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