Diatoms. Coloured scanning electron micrographs (SEMs) of a circular arrangement of various diatoms. Diatoms are planktonic unicellular algae. They ha

---

Diatoms. Coloured scanning electron micrographs (SEMs) of a circular arrangement of various diatoms. Diatoms are planktonic unicellular algae. They have a mineralised cell wall (frustule) divided into two halves. The frustule contains silica and provides protection and support. Magnification unknown.

---

Size: 3000px × 3000px
Photo credit: © STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alga, algae, algal, arrangement, assorted, assortment, botany, circle, circular, coloured, cut, cut-, cut-outs, cutout, cutouts, design, diatom, diatoms, frustule, frustules, geometrical, geometry, multiple, nature, outs, pattern, phytoplankton, plankton, planktonic, plant, radial, rounded, sem, single-celled, symmetrical, symmetry, unicellular, wheel