Which of the following are protozoans?

Options

A. Diatoms , chlamydomonas , paramecium
B. Desmids, chlamydomonas, paramecium
C. Amoeba , paramecium , plasmodium
D. Amoeba , paramecium ,chlamydomonas, plasmodium

Answer

To determine which of the following are protozoans, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Protozoans**: Protozoans are single-celled eukaryotic organisms that belong to the kingdom Protista. They are classified into various groups based on their movement and structure.

2. **Analyzing Each Option**:
- **Diatoms**: These are a type of algae and belong to the group Chrysophytes. They are not protozoans.
- **Chlamydomonas**: This is a unicellular green alga and is not classified as a protozoan.
- **Paramecium**: This is a ciliated protozoan and is indeed a protozoan.
- **Amoeba**: This is an amoeboid protozoan and is classified as a protozoan.
- **Plasmodium**: This is a sporozoan protozoan and is known for causing malaria. It is also classified as a protozoan.

3. **Identifying the Correct Protozoans**: From the analysis:
- **Protozoans identified**: Paramecium, Amoeba, and Plasmodium.
- **Non-protozoans identified**: Diatoms and Chlamydomonas.

4. **Conclusion**: The correct answer includes all the protozoans from the options provided. Therefore, the protozoans are **Amoeba, Paramecium, and Plasmodium**.

### Final Answer:
The protozoans among the options are **Amoeba, Paramecium, and Plasmodium**.

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