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Question

Which of the following is autotrophic bacteria?
  1. Azotobacter
  2. Azolla
  3. Nostoc
  4. Anabaena

A
Azotobacter
B
Nostoc
C
Azolla
D
Anabaena
Solution
Verified by Toppr

Azolla forms a symbiotic relationship with a cyanobacteria that helps it fix nitrogen. Cyanobacteria are bacteria that are capable of carrying out photosynthesis. So, the correct option is 'Azolla'.

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