diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae

achnanthes agriculture alga algae aqua bacteria biological biology bloom bronze cell chloroplast chrysophyta colony diatom diatoms eco emerald eukaryotes fluid fresh friendly frustule golden green heterokonts marine microbe microbiology microscope microscopic microscopy mineral mire natural nature nucleus organism plankton plant plastid protist river seaweed silica stain stramenopiles surface unicellular wallpaper water