micrasterias is a unicellular green alga

alga algae algas aquaculture aquarium background biology botany cell celled chain charophyte closteriaceae closterium contrast cutout darkfield desmid desmidiacea differential division euastrum fauna flora food freshwater green hobby illuminated interference life macro micrasterias microbiology microorganism microscope nature peat phytoplankton pond protozoa research school science unicellular university wildlife zoology zooplankton zygnematophyceae