Planktonic diatom alga, SEM

Planktonic diatom alga, SEM

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Caption: Planktonic diatom alga. Coloured scanning electron micrograph (SEM) of a Coscinodiscus sp. diatom alga (purple). A diatom is a planktonic unicellular alga that has silica in its cell wall (frustule). Diatoms are photosynthetic, and they are found in both marine and freshwater environments. The cell wall of a diatom is often intricately patterned, and has rows of tiny holes, known as striae.

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Keywords: alga, biological, biology, cell, coloured, coscinodiscus, diatom, false-colour, false-coloured, fauna, frustule, microscopic, nature, one, photosynthetic, phytoplankton, plankton, planktonic, scanning electron micrograph, scanning electron microscope, sem, silica, single, single celled, unicellular, wildlife, zoological, zoology

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