Which is a ciliate protozoan

Options

A. Vorticella
B. Paramecium
C. Colpidium
D. Trichonympha.

Answer

To determine which organism is a ciliate protozoan among the given options, we can analyze each one step by step.

1. **Identify the Options**: The options provided are Vorticella, Paramecium, Colpidium, and Trichonympha.

2. **Examine Vorticella**:
- Vorticella is known to be a type of green algae or a microorganism that is photosynthetic in nature.
- It is not classified as a protozoan, so this option can be eliminated.

3. **Examine Paramecium**:
- Paramecium is a well-known ciliated protozoan.
- It belongs to the kingdom Protista and is specifically classified under ciliated protozoans.
- This option is a strong candidate for being the correct answer.

4. **Examine Colpidium**:
- Colpidium is also a type of protozoan, but it belongs to the subclass Sporozoans.
- Since Sporozoans are not ciliated protozoans, this option can be eliminated.

5. **Examine Trichonympha**:
- Trichonympha is a type of bacteria that resides in the gut of termites.
- It assists in digesting cellulose from wood, but it is not a ciliate protozoan.
- Therefore, this option is also incorrect.

6. **Conclusion**: Based on the analysis, the only organism that fits the criteria of being a ciliate protozoan is **Paramecium**.

Thus, the answer is **Paramecium**.

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