**Step-by-Step Text Solution:**
1. **Understanding the Kingdom Animalia**: Kingdom Animalia is one of the five kingdoms in biological classification. It is primarily characterized by its members being multicellular, eukaryotic organisms.
2. **Nutritional Mode**: Animals are heterotrophic, meaning they cannot produce their own food and must consume other organisms for energy. This distinguishes them from plants, which are autotrophic.
3. **Cell Structure**: Animal cells do not have a cell wall, which is a significant characteristic that differentiates them from plants and fungi. In contrast, plant cells have a cell wall made of cellulose, and fungal cells have a cell wall made of chitin.
4. **Storage of Food**: In animals, the primary form of stored energy is glycogen or fat. This is different from plants, which store energy primarily as starch.
5. **Type of Nutrition**: Animals exhibit holozoic nutrition, which involves the ingestion of food, followed by digestion and absorption. This is different from fungi, which utilize absorptive nutrition.
6. **Conclusion**: Based on these characteristics, we can summarize that Kingdom Animalia is characterized by heterotrophic nutrition, being multicellular and eukaryotic, lacking a cell wall, storing energy as glycogen or fat, and exhibiting holozoic nutrition.
**Final Answer**: Kingdom Animalia is characterized by heterotrophic nutrition, multicellularity, eukaryotic cells without a cell wall, storage of food as glycogen or fat, and holozoic nutrition.
---
