Diatom alga, SEM

Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Diatom. Coloured scanning electron micrograph (SEM) of a Biddulphia pulchella diatom. This is a marine planktonic unicellular alga. It has a mineralised cell wall (frustule) divided into two halves. The frustule contains silica and provides protection and support. Magnification: x60 at 6x7cm size.

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Keywords: alga, algae, algal, biddulphia pulchella, botany, coloured, cut out, cut outs, cut-out, cut-outs, cutout, cutouts, diatom, diatoms, marine, nature, phytoplankton, plankton, planktonic, plant, rectangular, scanning electron micrograph, sem, single-celled, unicellular

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