Which kingdom is nutritionally most diversed group of organisms and have eukaryotic cellular organisation ?

Options

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

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the kingdom that is nutritionally the most diverse group of organisms and has a eukaryotic cellular organization.

2. **Identifying the Five Kingdoms**: According to R. H. Whittaker's five kingdom classification, the kingdoms are:
- Monera (prokaryotic)
- Protista (eukaryotic)
- Fungi (eukaryotic)
- Plantae (eukaryotic)
- Animalia (eukaryotic)

3. **Analyzing Cellular Organization**:
- Monera consists of prokaryotic organisms, which do not have a nucleus enclosed in a membrane.
- Protista, Fungi, Plantae, and Animalia are all eukaryotic, meaning they have a true nucleus and membrane-bound organelles.

4. **Examining Nutritional Modes**:
- **Monera**: While they show nutritional diversity (autotrophic and heterotrophic), they are prokaryotic and thus not included.
- **Protista**: This kingdom is known for its nutritional diversity. It includes:
- Autotrophic organisms (e.g., diatoms, dinoflagellates) that can produce their own food.
- Heterotrophic organisms (e.g., Euglena, slime molds) that can be saprotrophic or parasitic.
- **Fungi**: Primarily heterotrophic (decomposers).
- **Plantae**: Mostly autotrophic (producers).
- **Animalia**: Exclusively heterotrophic.

5. **Conclusion**: The kingdom that is nutritionally the most diverse and has eukaryotic cellular organization is **Protista**. This kingdom includes organisms that can be autotrophic, heterotrophic, saprotrophic, and parasitic.

### Final Answer:
The kingdom that is nutritionally the most diverse group of organisms and has eukaryotic cellular organization is **Protista**.

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