Nope, cyanobacteria are not known to have flagella.
They are, however, able to move about through other mechanisms though. Most commonly is gliding motility. An example is Oscillatoria.
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Yes, blue-green algae, also known as cyanobacteria, do have a nucleus. However, their genetic material is not enclosed in a membrane-bound nucleus like in eukaryotic cells; instead, it is located in a region of the cell called the nucleoid.
The bacteria and blue green algae are exception of the cell theory because they are devoid of the true nucleus or well organized nucleus.
In present classification all algae contain nucleus . In classical classification algae were of two types . 1 Blue green algae lack nucleus and 2 all other algae are eukaryotic and possess nuclei .
No, Spirogyra is a filamentous green algae, not blue-green algae. Blue-green algae belong to the group cyanobacteria, which are photosynthetic bacteria that can appear blue-green in color.
Blue-green algae belong to the Kingdom Bacteria, specifically in the phylum Cyanobacteria.
No, green algae are eukaryotic organisms. They have a defined nucleus and other membrane-bound organelles, unlike prokaryotic cells which lack a true nucleus.