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Entamoeba histolytica trophozoite, light micrograph

Amoeba protozoan, light micrograph

Entamoeba histolytica protozoa

Entamoeba histolytica protozoan cyst

Entamoeba histolytica protozoa

Entamoeba histolytica trophozoite, light micrograph

Amoeba protozoa, SEM

Amoeba protozoa, SEM

Amoeba proteus Protozoan with pseudopods

Amoeba protozoa, light micrograph

Amoeba, light micrograph

Amoeba, light micrograph

Amoeba, light micrograph

Amoeba proteus, light micrograph

Radiolaria, light micrograph

Nuclearia amoeba, light micrograph

Radiolaria, light micrograph

Radiolaria, light micrograph

Entamoeba moshkovskii trophozoites, light micrograph

Radiolarian, light micrograph

Radiolarian, light micrograph

Iodamoeba buetschlii parasitic cyst

Acanthocystis, SEM

Heliozoan, SEM

Naegleria fowleri protozoan, TEM

Naegleria fowleri protozoan, TEM

Naegleria fowleri protozoan, TEM

Proteus amoeba, light micrograph

Amoeba, light micrograph

Amoeba, light micrograph

Acanthocystis, SEM

Acanthocystis, SEM

Acanthocystis, SEM

Liver infected with coccidiosis, light micrograph

Entamoeba coli binucleated cyst, light micrograph

Proteus amoeba, light micrograph

Radiolaria skeleton, light micrograph

Heliozoan, SEM

Heliozoan, SEM

Algae and protist, light micrograph

Leishmania protozoa and blood cells, SEM

Sleeping sickness parasite, SEM

Sleeping sickness parasite, SEM

Sleeping sickness parasite, SEM

Sleeping sickness parasites, SEM

Macrophage attacking a foreign body, SEM

Giardia lamblia protozoan, SEM

Giardia lamblia protozoan, SEM

Giardia lamblia protozoan, SEM

Giardia lamblia protozoan, SEM

Giardia lamblia protozoan, SEM

Isospora sp. parasites, TEM

Parasite spore, SEM

Toxoplasmosis parasite cyst

Nitrogen-fixing bacteria

Amoebae, Illustration

Amoebae, Illustration

Amoebae, Illustration

Amoebae, Illustration

Amoebae, Illustration

Amoebae, Illustration

Shigella sp. bacterium, SEM

Shigella sp. bacterium, SEM

Malaria parasite in red blood cell

Malaria parasite in red blood cell

Malaria parasite in red blood cell

Amoeba protozoa, light micrograph

Amoeba protozoa, light micrograph

Liver of a mammal infected by coccidiosis, light micrograph

African swine fever virus infecting cell, light micrograph

Diaphoropodon amoeba, LM

Deuteramoeba amoeba, LM

Deuteramoeba amoeba, LM

Amoeba, light micrograph

Amoeba and desmid, light micrograph

Freshwater amoeba, LM

Freshwater amoeba, LM

Amoeboid protozoa, SEM

Pterocystis heliozoan, SEM

Pterocystis heliozoan, SEM

Foraminiferan, light micrograph

Trichodina pediculus, light micrograph

Kerona protozoan, light micrograph

Macrophage attacking a foreign body, SEM

Enterocytozoon sp. parasite, TEM

Enterocytozoon sp. parasites, TEM

Enterocytozoon sp. parasites, TEM

Enterocytozoon sp. parasite, coloured TEM

Enterocytozoon sp. parasite, coloured TEM

Parasitic amoeba, SEM

Parasitic amoeba, SEM

Parasitic amoeba, SEM

Parasitic amoeba, SEM

Parasitic amoeba, SEM

Mycoplasma bacteria, TEM

Mycoplasma bacteria, TEM

Mycoplasma bacteria, TEM

Giardia protozoan parasite, TEM

Giardia lamblia protozoa, SEM

Giardia lamblia protozoan, SEM

Leishmania parasites, light micrograph

Leishmania parasites, light micrograph

Schistosome larva

Schistosome parasite

Schistosome egg

Schistosomes

Schistosome eggs

Schistosome egg

Fertilized Ascaris lumbricoides egg, light micrograph

Shelled amoeba, light micrograph

Malarial blood cell, SEM

Trichodina parasite, SEM

Trichodina parasite, SEM

Entamoeba gingivalis life cycle

Acanthocystis, SEM

Acanthocystis, SEM

Heliozoan and alga, light micrograph

Bacteria from a human beard, SEM

Bacteria from a human beard, SEM

Bacteria from a human beard, SEM

Bacteria from a human beard, SEM

Chlamydia bacteria in a lung cell, TEM

Chlamydia bacteria in a lung cell, TEM

Chlamydia bacteria in a lung cell, TEM

Arcella sp., light micrograph

Testate amoeba, light micrograph

Testate amoeba, light micrograph

Amoeba with Euglena and diatoms, light micrograph

Difflugia amoeba and sp. diatoms, light micrograph

Difflugia testate amoeba, light micrograph

Ophrydium protozoa, light micrograph

Ophrydium protozoa, light micrograph

Ophrydium protozoa, light micrograph

Microorganisms, light micrograph

Amoeba protozoa, light micrograph

Parasitic amoeba, illustration

Heliozoa protozoan, light micrograph

Heliozoa feeding on volvox, light micrograph

Heliozoa feeding on volvox, light micrograph

Heliozoa feeding on volvox, light micrograph

Amoeba from shower drain, light micrograph

Amoeba from shower drain, light micrograph

Shelled amoeba, light micrograph

Shelled amoeba, light micrograph

Marine foraminifera, polarised light micrograph

Toxoplasma gondii, fluorescence light micrograph

Gill disease, SEM

Gill disease, SEM

Gill disease, SEM

Legionella infected protozoan, TEM

Sleeping sickness, LM

Sleeping sickness, LM

Rust fungus on a bellflower leaf, SEM

Bacteriophages attacking bacteria, TEM

Bacteriophages attacking bacteria, TEM

Bacteriophages attacking bacteria, TEM

Hartmannella vermiformis protozoa cysts

Giardia protozoan, SEM

Horse fly gut, SEM

Stentor ciliate, LM

Stentor protozoan, light micrograph

Stentor protozoan, light micrograph

Stentor protozoan, light micrograph

Bursaria protozoan, light micrograph

Worm infected tissue, light micrograph

Giant roundworm, light micrograph

Common liver fluke

Amoeba shells, light micrograph

Arcella sp. shelled amoeba, light micrograph

Shelled amoeba, light micrograph

Testate amoebae, light micrograph

Amoeba, artwork

Actinosphaerium heliozoan, light micrograph

Actinosphaerium heliozoan, light micrograph

Volvox alga colony with amoeba parasite, light micrograph

Hypotrich ciliate, light micrograph

Foraminiferans, light micrograp

Trypanosoma protozoa in blood, LM

Trypanosoma Protozoa in blood, LM

Scytonema hyalinum cyanobacteria, light micrograph

Scytonema hyalinum cyanobacteria, light micrograph

Actinosphaerium heliozoan, light micrograph

Microsporidium parasite, SEM

Madurella grisea fungal infection, light micrograph

Lymph node of person with HIV, fluorescent light micrograph

Parasitic amoeba, illustration

Parasitic amoeba, illustration

Parasitic amoeba, illustration

Parasitic amoeba, illustration

Parasitic amoeba, illustration

Parasitic amoeba, illustration

Parasitic amoeba, illustration

Parasitic amoeba, illustration

Parasitic amoeba, illustration

Mollusc radula, light micrograph

Amoeba with algae, light micrograph

Chicken mites, light micrograph

Chicken mite, light micrograph

Leishmania protozoan and blood cells, SEM

Leishmania protozoan and blood cells, SEM