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Which of the following species does not have the ability to fix atmospheric nitrogen?
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a
Nostoc
b
Spirogyra
c
Azotobacter
d
Anabaena
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Correct option is B
Nostoc, Anabaena and Azotobacter are nitrogen fixer. Whereas Spirogyra cannot fix nitrogen.Similar Questions
Read the following statements and identify the organisms.
(a) They have chlorophyll a similar to green plants.
(b) They often form blooms in polluted water bodies.
(c) They can fix atmospheric nitrogen.
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