STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Sea cucumber plate. Coloured scanning electron micrograph of an ossicle (plate, green) from a sea cucumber, surrounded by diatoms. The body structure of sea cucumbers is supported by these intricate skeletal plates of silica or calcium. Magnification: x150 when printed 10 centimetres wide.
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