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wood prints shell wood prints algae wood prints botany wood prints diatom wood prints frustule wood prints micrograph wood prints micrographs wood prints plankton wood prints scanning electron micrographs wood prints sem wood prints shells wood prints

photographs shell photos algae photos botany photos diatom photos frustule photos micrograph photos micrographs photos plankton photos scanning electron micrographs photos sem photos shells photos

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Tiny organisms at the bottom of the food chain, diatoms are a type of single celled algae that live in seas, lakes, rivers, soils, and even on other plants and animals. They are so abundant in the oceans that scientists believe they help to control carbon dioxide levels in the atmosphere. Diatoms are also studied to monitor the environmental histories of lakes and seas. The shells are constructed like little glass pill boxes, with one half fitting into the other to protect the living cell within. (Diatom = far north). SEM x 8000.