blue green algae under microscopic view, cyanobacteria, gram-negative bacteria that obtain energy via photosynthesis

algae bacteria biological biology biotechnology blue bluegreen cell chlorophyll chloroplast contrast cyanobacteria differential ecosystem education energy environment euglena experiment eyespot fauna freshwater genus gram gramnegative green interference isolation lab laboratory macro micro microbiology microscope microscopic negative nucleus obtain organism pellicle photosynthesis phytoplankton plankton polluted pollution pond protozoa research school science scientific singlecelled that toxins via view water