NEET Biology question

Which of the following statements is CORRECT regarding Azolla, the water fern used as a biofertiliser?

(A)It fixes nitrogen on its own, without any microbial partner
(B)It harbours the nitrogen-fixing cyanobacterium Anabaena azollae in its leaf cavitiesCorrect
(C)It is a fungus, not a fern
(D)It is used only as an industrial antibiotic source

Answer: (B)

Solution

Azolla is a water fern that hosts the nitrogen-fixing cyanobacterium Anabaena azollae within specialised

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Question ID VK-124420