Question

Which of the following is the algal symbiotic of Azolla responsible for biological N fixation?

A Azotobacter Correct Answer Incorrect Answer
B Azospirillum Correct Answer Incorrect Answer
C Anabaena Correct Answer Incorrect Answer
D None of the above Correct Answer Incorrect Answer

Solution

Anabaena and azolla are in symbiosis and do biological nitrogen fixation in rice crop.

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