Oscillatoria blue-green alga

Oscillatoria blue-green alga

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Caption: Light micrograph of Oscillatoria sp. (brown strands), a filamentous blue-green alga or cyanobacterium. The strands of alga are in fact linear colonies of primitive, single-celled, prokaryotic organisms, more closely related to bacteria than to algae. They are considered to be one of the most primitive organisms, dating back to pre-Cambrian times. The strands (known as trichomes) of Oscillatoria exhibit swaying motion & can also move backward & forward. The mechanism for this movement is not yet fully understood. Magnification: x200 at 35mm size.

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Keywords: alga, algae, algal, blue-green, blue-green algae, botany, cyanobacteria, filamentous, filamentous algae, light micrograph, nature, oscillatoria sp., plant

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