Kingdom
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Several possible meanings.
1. A kingdom is a land ruled by a king.
2. A kingdom is the highest-level grouping of organisms used in traditional scientific classification. There are five kingdoms:
- Monera - Bacteria and blue-green algae (prokaryotes)
- Protista - More complex single-celled organisms and algae (eukaryotes)
- Fungi - Mushrooms, yeasts, and other fungi
- Plantae - Plants
- Animalia - Animals
Please see Biology for a discussion of modifications to this traditional classification scheme.