Holosticha ciliate protozoan. Coloured scanning electron micrograph (SEM) of a Holosticha sp. ciliate protozoan ingesting diatoms (blue). Holosticha is a tiny single-celled aquatic organism. Food is filtered through membranelles in its primitive mouth, known as a buccal cavity (green). The membranelles, rows of fused cilia (short microscopic hairs), are also used for locomotion. Magnification: x1300 when printed at 10 centimetres tall.
July 6th, 2016
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