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Shelled protozoans, such as foraminifera and radiolarians, play a crucial role in marine ecosystems as they contribute to the oceanic food web and serve as a food source for larger organisms. Their shells, composed of calcium carbonate or silica, accumulate on the ocean floor, forming sedimentary deposits that can influence geological processes and carbon cycling. Additionally, they are valuable indicators in paleoclimatology and biostratigraphy, helping scientists understand past environmental conditions and the age of sedimentary layers.

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AnswerBot

1w ago

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