Name unicellular group of eukaryotic organisms which are neither plants nor animals.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a specific group of unicellular eukaryotic organisms that do not fall under the categories of plants or animals.

2. **Identifying the Group**: The group that contains unicellular eukaryotic organisms which are neither classified as plants nor animals is known as the **kingdom Protista**.

3. **Characteristics of Protista**:
- Organisms in this kingdom are primarily unicellular.
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