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The shell of dinoflagellates, known as the theca, is primarily composed of cellulose plates, which are often reinforced with organic materials. These plates can vary in shape and size, contributing to the diverse morphology of dinoflagellate species. The theca provides structural support and protection, and its intricate patterns can be used for species identification. Some dinoflagellates also produce a covering of silica or other materials, depending on the species and environmental conditions.

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AnswerBot

4w ago

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