Most of the unicellular organisms are kept under

Options

A. Kingdom monera and kingdom protista
B. Kingdom monera and kingdom plantae
C. Kingdom protista and kingdom plantae
D. Kingdom protista and kingdom fungi

Answer

To solve the question "Most of the unicellular organisms are kept under," we need to analyze the classification of living organisms, particularly focusing on unicellular organisms.

### Step-by-Step Solution:

1. **Understanding Unicellular Organisms**:
- Unicellular organisms are those that consist of a single cell. They can be either prokaryotic or eukaryotic.

2. **Classification of Living Organisms**:
- Living organisms are classified into five kingdoms:
- **Monera**: This kingdom includes all unicellular prokaryotic organisms (e.g., bacteria).
- **Protista**: This kingdom includes all unicellular eukaryotic organisms (e.g., protozoa, algae).

3. **Identifying the Relevant Kingdoms**:
- Since the question specifically asks about unicellular organisms, we focus on the kingdoms that contain these organisms:
- **Kingdom Monera**: Contains unicellular prokaryotes.
- **Kingdom Protista**: Contains unicellular eukaryotes.

4. **Evaluating the Options**:
- **Option 1**: Kingdom Monera and Kingdom Protista - This option includes both types of unicellular organisms.
- **Option 2**: Kingdom Monera and Kingdom Plantae - Plantae includes multicellular organisms, so this option is incorrect.
- **Option 3**: Kingdom Protista and Kingdom Plantae - Plantae does not include unicellular organisms, so this option is incorrect.
- **Option 4**: Kingdom Protista and Kingdom Fungi - Fungi are primarily multicellular, so this option is also incorrect.

5. **Conclusion**:
- The correct answer is **Option 1: Kingdom Monera and Kingdom Protista**, as these are the two kingdoms that encompass most unicellular organisms.

### Final Answer:
Most of the unicellular organisms are kept under **Kingdom Monera and Kingdom Protista**.