Name all 5 Kingdoms.

Explanation

### Step-by-Step Solution:

1. **Understanding the Classification**: The five kingdoms of living organisms were classified by R.H. Whittaker. This classification helps in organizing the vast diversity of life on Earth.

2. **Identifying the Five Kingdoms**:
- **Kingdom Monera**: This kingdom includes prokaryotic organisms, primarily bacteria. These organisms are unicellular and lack a true nucleus.
- **Kingdom Protista**: This kingdom consists of unicellular eukaryotic organisms. They exhibit various modes of nutrition, including saprobic, mixotrophic, autotrophic, and heterotrophic.
- **Kingdom Fungi**: Fungi are primarily multicellular eukaryotic organisms, although there are exceptions. They obtain nutrients through saprotrophic means, decomposing organic matter.
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