Biology, asked by jpsavita5652, 1 year ago

A free living nitrogen-fixing cyanobacterium
which can also form symbiotic association with
the water fern Azolla is
(a) Tolypothrix (b) Chlorella
(c) Nostoc (d) Anabaena

Answers

Answered by Anonymous

1

Answer:

A free living nitrogen-fixing cyanobacterium

which can also form symbiotic association with

the water fern Azolla is

(a) Tolypothrix

(b) Chlorella

(c) Nostoc

(d) Anabaena ✔✔

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