Responsible for creation of vast limestone deposits
Correct answer: D. Foraminiferans
- A. Apicomplexans
- B. Ciliates
- C. Protozoans
- D. Foraminiferans
Explanation
Foraminiferans are single-celled protists with shells made of calcium carbonate. When foraminiferans die, their shells settle on the ocean floor, accumulating over time to form limestone deposits. This distinguishes them from other protists like Apicomplexans and Ciliates, which do not contribute to limestone formation. Protozoans is a broader category that includes foraminiferans, but not all protozoans form limestone deposits.
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About Kingdom Protista
Kingdom Protista contains mainly unicellular eukaryotes, although some forms are colonial or multicellular, with varied nutritional and reproductive methods. Questions examine protozoans, algae and examples such as Amoeba, Paramecium and Euglena, while distinguishing protists from prokaryotes, fungi and true plants.
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