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Identify the incorrect statement w.r.t. cyanobacteria

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The first organisms that produced oxygen on our earth.

Anabaena is free living nitrogen fixing cyanobacterium

Excessive growth of blue green algae in polluted water bodies is called bloom

They contain all pigments that are found in higher plants

answer is D.

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Detailed Solution

The cyanobacteria (also referred to as blue-green algae) have chlorophyll a similar to green plants and are photosynthetic autotrophs. But they do not have Chlorophyll b, carotenes and xanthophyll (lutein).

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