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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