Balantidium & Opalina are included in class:
Correct answer: D. Ciliata
- A. Flagellata
- B. Sarcodina
- C. Sporozoa
- D. Ciliata
- E. Suctoria
Explanation
The correct answer is Ciliata. Balantidium and Opalina are ciliated protozoans, meaning they use cilia for movement and feeding, which is a defining characteristic of the class Ciliata. This distinguishes them from other classes of protozoans like Flagellata, which use flagella; Sarcodina, which use pseudopodia; Sporozoa, which are mostly non-motile; and Suctoria, which use tentacle-like structures instead of cilia in their feeding process.
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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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