spirogyra sp. algae under microscopic view x40, chlorophyta, green algae, blue green algae, background

algae animal background biological biology biotechnology blue cell chlorophyll chlorophyta chloroplast contrast cyanobacteria differential education euglena experiment eyespot fauna freshwater genus green interference isolation lab laboratory life light macro micro microbiology microscope microscopic nucleus organism pellicle phytoplankton plankton pond protozoa research school science scientific silk singlecelled spirogyra university view wall water white x40