Single-celled eukaryotes are included in Kingdom

Options

A. Protista
B. Fungi
C. Plantae
D. Monera

Answer

To solve the question "Single-celled eukaryotes are included in which kingdom?", we can follow these steps:

### Step 1: Understand the Terms
- **Single-celled eukaryotes**: These are organisms that consist of only one cell and have a nucleus and other membrane-bound organelles. They are also referred to as unicellular eukaryotes.

### Step 2: Review the Classification of Organisms
- Organisms are classified into different kingdoms based on their cellular structure and characteristics. The two main categories are:
- **Prokaryotic**: Organisms without a nucleus (e.g., bacteria).
- **Eukaryotic**: Organisms with a nucleus (e.g., plants, animals, fungi, and protists).

### Step 3: Identify the Relevant Kingdoms
- In the five-kingdom classification system, the kingdoms relevant to our question are:
1. **Kingdom Monera**: Prokaryotic organisms (e.g., bacteria).
2. **Kingdom Protista**: Primarily unicellular eukaryotes.
3. **Kingdom Fungi**: Includes both unicellular (like yeast) and multicellular organisms.
4. **Kingdom Plantae**: Multicellular organisms (plants).
5. **Kingdom Animalia**: Multicellular organisms (animals).

### Step 4: Determine Which Kingdom Contains Single-celled Eukaryotes
- Among the kingdoms mentioned:
- **Kingdom Protista** is known to contain primarily unicellular eukaryotes.
- **Kingdom Fungi** has some unicellular forms but is not exclusively unicellular.
- **Kingdom Monera** consists of prokaryotic organisms, not eukaryotic.

### Step 5: Conclusion
- Therefore, the correct answer to the question is **Kingdom Protista**, as it includes single-celled eukaryotes.

### Final Answer
Single-celled eukaryotes are included in **Kingdom Protista**.

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