_________ is an example of unicellular organism.

Explanation

To answer the question, "_________ is an example of a unicellular organism," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Classification of Organisms**:
- Organisms can be classified into two main categories: unicellular and multicellular.
- Unicellular organisms consist of a single cell, while multicellular organisms are made up of multiple cells.

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