How many statements are correct for the give organism in figure?

(i) Filamentous cyanobacteria as oxygenic photoautotroph.
(ii) Surrounded by mucilaginous sheath.
(iii) Heterocyst are specialized for $N_{2}$ fixation.
(iv) Reproduce by hormogonia formation.

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Three

One

Two

Four

answer is A.

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Detailed Solution

It is blue green alga Nostoc. It is filamentous, has mucilagenous sheath, special nitrogen fixing cells heterocysts and hormogonia are involved in vegetative reproduction.

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