structure of a euglena

algae anatomy and animal biological biology cell cellular chlorophyl chlorophyll chloroplast composed design diagram discoba education euglena euglenaceae euglenales euglenozoa eukaryota excavata eye eyespot flagellate flagellum freshwater green has illustration laboratory micro microbe microbiology microorganism microscope microscopic microscopical microscopy nucleus organism pellicle permanent photosynthesis phytoplankton plate protist protists protozoa protozoan rudimentary science seaweeds small stigma structure study tiny unicellular vacuole vacuoles vector viridis zoology