Diatom alga, SEM

Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Diatom. Coloured scanning electron micrograph (SEM) of a Triceratium sp. diatom. This is a planktonic marine unicellular alga. It has a mineralised cell wall (frustule) divided into two halves. The frustule contains silica and provides protection and support. Magnification unknown.

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Keywords: alga, algae, algal, botany, coloured, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, diatom, diatoms, frustule, marine, nature, pentagonal, phytoplankton, plankton, planktonic, plant, radial symmetry, scanning electron micrograph, sem, single-celled, star-shaped, symmetrical, triceratium sp., unicellular

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