In Whittaker's classification, non-nucleated unicellular organisms/procaryotes are included under

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding Whittaker's Classification**: Whittaker proposed a five-kingdom classification system in 1969, categorizing all living organisms into five distinct kingdoms based on various criteria.

2. **Identifying the Criteria**: The classification is based on:
- Complexity of cell structure
- Complexity of body structure
- Mode of nutrition
- Ecological lifestyle
- Phylogenetic relationships

3. **Identifying the Kingdoms**: The five kingdoms in Whittaker's classification are:
- **Monera**: This kingdom includes all prokaryotic organisms, which are non-nucleated and unicellular.
- **Protista**: This kingdom consists of unicellular eukaryotic organisms.
- **Fungi**: This kingdom includes all fungi, which can be unicellular or multicellular.
- **Plantae**: This kingdom includes multicellular eukaryotic plants.
- **Animalia**: This kingdom includes multicellular animals.

4. **Focusing on Prokaryotes**: Non-nucleated unicellular organisms are classified as prokaryotes. In Whittaker's system, prokaryotes are specifically placed in the kingdom Monera.

5. **Conclusion**: Therefore, in Whittaker's classification, non-nucleated unicellular organisms (prokaryotes) are included under the kingdom **Monera**.

**Final Answer**: Non-nucleated unicellular organisms/prokaryotes are included under **Monera**.

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