Question

I want to know about ecological importance of pteridophytes​

Answer 1

Answer:

dear friend :

It's an economically valuable species which is used as a bio fertilizer. Since Azolla leaves contains symbiotic cyanobacteria that are able to convert atmospheric nitrogen to nitrate. Some members of pteridophytes are noxious weed like Salvinia, Pteridium which are weedy aquatic ferns.

Explanation:

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