euglena is genus of single-celled flagellate eukaryotes

algae algal animal biology biotechnology cell celled chlorella ciliate division education experiment fauna filaments flora food freshwater genus green heterotrichs heterotrophic lab laboratory life light macro macronucleus micro microbiology micronuclei microscope nature nucleus organism organisms pellicle phytoplankton plankton pond protists protozoa regenerate research school science scientific sessile single unicellular university wildlife zoochlorella zooplankton