Coloured SEM of the foraminifera, Globigerina

Coloured SEM of the foraminifera, Globigerina

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Credit: MANFRED KAGE/SCIENCE PHOTO LIBRARY

Caption: Marine plankton. Coloured scanning electron micrograph of marine Foraminifera, Globigerina sp collected off Barbados. Their shells are made from organic secretions of chitinous, calcareous or siliceous matter. The surface is spotted with pores through which adhesive pseudopodia extend and trap food including algae and bacteria. Unlike most foraminiferans that live on the sea bottom, Globigerina has radiating spicules (not seen) which aid in flotation. This genus gave its name to the Globigerine ooze, a hugh area of the ocean floor covered in the shells of these creatures which give rise to chalk and limestone. Magnification: x120 at 6x7cm size.

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Keywords: animal, foraminifera, globigerina sp, globigerine ooze, invertebrate, invertebrates, marine, marine plankton, nature, plankton, protozoa, protozoan, wildlife, zoology, zooplankton

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