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    Close-up of parasitic amoeba in human intestine, digital artwork. — Stock Photo
    Close-up of parasitic amoeba in human intestine, digital artwork.
    Corals covering reef in Beqa Lagoon — Stock Photo
    Corals covering reef in Beqa Lagoon
    Parasitic amoeba engulfing red blood cells, illustration in imaging flow cytometry. — Stock Photo
    Parasitic amoeba engulfing red blood cells, illustration in imaging flow cytometry.
    Pair of Risbecia tryoni nudibranchs — Stock Photo
    Pair of Risbecia tryoni nudibranchs
    Colored scanning electron micrograph of predatory ciliate protozoan Loxophyllum. — Stock Photo
    Colored scanning electron micrograph of predatory ciliate protozoan Loxophyllum.
    Plants and flower on biofilm in the forest — Stock Photo
    Plants and flower on biofilm in the forest
    Risbecia tryoni nudibranch in Beqa Lagoon — Stock Photo
    Risbecia tryoni nudibranch in Beqa Lagoon
    Starfish and fish on seabed, Indonesia — Stock Photo
    Starfish and fish on seabed, Indonesia
    Orals covering reef in Beqa Lagoon — Stock Photo
    Orals covering reef in Beqa Lagoon
    Close-up of parasitic amoeba in human intestine, digital artwork. — Stock Photo
    Close-up of parasitic amoeba in human intestine, digital artwork.
    Beautiful blue Betta fish on white background, close view — Stock Photo
    Beautiful blue Betta fish on white background, close view
    Soft coral on Fijian reef — Stock Photo
    Soft coral on Fijian reef
    Freshwater sponge (Spongilla sp.), coloured scanning electron micrograph (SEM). — Stock Photo
    Freshwater sponge (Spongilla sp.), coloured scanning electron micrograph (SEM).
    Entamoeba gingivalis parasitic pathogen single-celled protozoan, amoeba in oral cavity, digital illustration. — Stock Photo
    Entamoeba gingivalis parasitic pathogen single-celled protozoan, amoeba in oral cavity, digital illustration.
    White nudibranch with black feathers — Stock Photo
    White nudibranch with black feathers
    Beautiful red Betta fish swimming in aquarium on dark background, close view — Stock Photo
    Beautiful red Betta fish swimming in aquarium on dark background, close view
    Glowing coral reef in ocean — Stock Photo
    Glowing coral reef in ocean
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats. They are predatory organism, feeding on other ciliate protozoans, mainly Paramecium — Stock Photo
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats. They are predatory organism, feeding on other ciliate protozoans, mainly Paramecium