Question

how many photosynthetic pigments in cyanobacteria​

Answer 1

Explanation:

chlorophyll a

yellowish carotenoids

blueish phybilin

reddish phycoerythrin

Answer 2

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Cyanobacteria are autotrophic microbes found in aquatic and Terrestrial environment .Most of these fix atmospheric nitrogen .

example :- nostoc ,oscillatoria and anaebena.

In paddy fields cyanobacteria serve as an important biofertilizer as they enrich the nitrogen content in the soil. They also add organic matter to the soil. Thus increasing the fertility .

Thus the application of cyanobacteria helps in improving agricultural output .

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