Radiolarian test, SEM

Radiolarian test, SEM

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Radiolarian test. coloured scanning electron micrograph (SEM). The hard skeleton surface is composed of silica or strontium sulphate. The Radiolaria (also called Radiozoa) are protozoa that produce intricate mineral skeletons. They are found as zooplankton throughout the ocean and their skeletal remains make up a large part of the cover of the ocean floor as silica ooze. Radiolarians can often contain symbiotic algae, especially zooxanthellae, which provide most of the cell's energy. Magnification: x1700 when printed at 10cm wide.

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Keywords: biological, biology, magnification, magnified, microbiological, microbiology, micrograph, microscopic, plankton, protozoa, radiolaria, radiolarian, scanning electron micrograph, sem, sphere, symbiosis., test algae, zooplankton, zooxanthellae

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