Diatom | Description, Characteristics, & Reproduction | Britannica
https://www.britannica.com/science/diatom
WEBMar 8, 2024 · diatom, (class Bacillariophyceae), any member of the algal class Bacillariophyceae (division Chromophyta), with about 16,000 species found in sediments or attached to solid substances in all the waters of Earth. Diatoms are among the most important and prolific microscopic sea organisms and serve directly or indirectly as food …
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