Amoeba with blue-green alga

Amoeba with blue-green alga

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Credit: SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY.

Caption: Light micrograph (Nomarski) of Amoeba sp (0. 2- 0. 5mm in diametre) regurgitating a blue-green algae, Oscillatoria sp. The track through the cytoplasm where the algae passed is clearly visible. Amoeba collect food & move through their environment by means of pseudopodia, or false feet. Pseudopodia are changes in the outline of the cytoplasm forming the cell body. It flows outward in a rapid stream forming a fingerlike extension. As a mechanism for collecting food, it flows around & engulfs small organisms & then is reabsorbed into the cell body, where digestion takes place. Amoeba may have many, or a single, pseudopodia. Magnification X50 (at 35mm size).

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Keywords: algae, amoeba sp., animal, blue-green, blue-green algae, eating, invertebrate, invertebrates, light micrograph, lm, nature, nomarski, protozoa, protozoan, pseudopodia, wildlife, zoology

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