STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Globigerina foraminiferan. Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan. Foraminifera are marine single-celled protozoa that construct and inhabit shells composed of several chambers. Magnification: x400 at 10 centimetres wide.
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