Augusta County Public Schools / Overview

5) Diatom shells don't decompose - forms material called DIATOMACEOUS EARTH - abrasive - ingredient in detergents, paint removers, fertilizers, insulators, scouring powders. 3. Phylum Pyrrophyta - "Fire" Algae. a. Most are marine; important component of oceanic phytoplankton - also called DINOFLAGELLATES - all unicellular. b. ................
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