Question

Name a bacterium and a blue green algae to fix atmospheric nitrogen.

Answer 1

Answer:

cynobacteria

Explanation:

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Answer 2

Answer:

Two kinds of nitrogen-fixing bacteria are recognized. The first kind, the free-living (nonsymbiotic) bacteria, includes the cyanobacteria (or blue-green algae) Anabaena and Nostoc and genera such as Azotobacter, Beijerinckia, and Clostridium.

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