Acrosphaera radiolarian, SEM

Acrosphaera radiolarian, SEM

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Acrosphaera radiolarian. Coloured scanning electron micrograph (SEM) of the shell of a Acrosphaera sp. radiolarian. Radiolaria are single-celled protozoans that are found in marine plankton. This radiolarian has a silicate skeleton with pores through which pseudopodia (false feet) of protoplasm project. As it floats in ocean currents, the pseudopodia trap food particles on which the radiolarian feeds.

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Keywords: 1, acrosphaera sp., amoeboid, animal, aquatic, biological, biology, circle, circular, coloured, cut out, cut-out, cutout, false-colour, false-coloured, fauna, invertebrate, invertebrates, marine, microbiological, microbiology, nature, one, plankton, pores, protoplasm, protoplasmic, protozoa, protozoan, pseudopodia, radiolaria, radiolarian, round, scanning electron micrograph, scanning electron microscope, sem, shell, silicate, single, single-cell, single-celled, skeleton, test, unicellular, zoological, zoology, zooplankton

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