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68.7 MB (69.0 compressed)
6000 x 4000 pixels
50.8 x 33.8 cm ⏐ 20.0 x 13.3 in (300dpi)
FRANK FOX / SCIENCE PHOTO LIBRARY FRANK FOX / SCIENCE PHOTO LIBRARY
Shelled amoeba. Polarised light micrograph of testate (shelled) amoeba. The circular shell is formed form the polysaccharide chitin. This amoeba is found in freshwater ponds and puddles. It can develop vacuoles of carbon dioxide in its body to float up to the water's surface. Magnification: x400 when printed at 10 centimetres wide.
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