Amoeba is a/an

Options

A. virus
B. alga
C. protozoan
D. bacterium

Explanation

**Step-by-Step Solution:**

1. **Understanding the Options**: The question provides four options: virus, algae, protozoan, and bacteria. We need to determine which category Amoeba belongs to.

2. **Identifying Characteristics of Amoeba**: Amoeba is described as a free-living organism that cannot prepare its own food, meaning it is heterotrophic. This indicates that it depends on other organisms for food.

3. **Classifying Amoeba**: Since Amoeba is a unicellular organism (made up of a single cell) and exhibits animal-like characteristics, it falls under the category of protozoans.

4. **Confirming the Kingdom**: Amoeba belongs to the Protista kingdom, which includes all single-celled eukaryotes, such as protozoans, euglenoids, and dinoflagellates.

5. **Identifying the Correct Answer**: Given the characteristics and classification, Amoeba is not a virus, algae, or bacteria. Therefore, the correct answer is that Amoeba is a protozoan.

**Final Answer**: Amoeba is a protozoan.

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