Mineral NutritionHard
Question
A free living, nitrogen-fixing cyanobactium which can also form symbiotic association with the water fern Axolla is
Options
A.Tolypothrix
B.Chlorella
C.Nostoc
D.Anabaena
Solution
Anabaena is a free living, nitrogen-fixing cyanobactium which can also form symbiotic association with water fern Azolla.
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