Organisms and PopulationMedium

Question

Which of following organisms cannot fix nitrogen?

A. Azotobacter

B. Oscillatoria

C. Anabaena

D. Volvox

E. Nostoc

Choose the correct Ans. from the options given below:

Options

A.A only
B.D only
C.B only
D.E only

Solution

Azotobacter, Oscillatoria, Anabaena and Nostoc can fix nitrogen but Volvox cannot fix nitrogen.

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