euglena; nucleus; organism; laboratory; illustration; biology; science; protozoa; animal; micro; microscopy; green; white; protozoan; stigma; microscope; cell; unicellular; microbiology; cellular; zoology; structure; flagellum; microorganism; chloroplast; vacuole; scientific; eukaryota: Bilder zum Thema euglena; nucleus; organism; laboratory; illustration; biology; science; protozoa; animal; micro; microscopy; green; white; protozoan; stigma; microscope; cell; unicellular; microbiology; cellular; zoology; structure; flagellum; microorganism; chloroplast; vacuole; scientific; eukaryota bei ClipDealer