Cyanobacteria, also known as blue-green algae (BGA) are most primitive prokaryotic organisms. These are considered to be the most ancient of all the chlorophyll bearing organisms on Earth.
The cyanobacteria are also referred to as
Held on 30 Apr 2012 · Verified 9 Jul 2026.
protists
golden algae
slime moulds
blue-green algae
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