Final answer:
The zoological classification hierarchy of the domestic horse is Kingdom: Animalia, Phylum: Chordata, Class: Mammalia, Order: Perissodactyla, Family: Equidae, Genus: Equus, Species: caballus.
Step-by-step explanation:
The zoological classification hierarchy of the domestic horse is as follows:
- Kingdom: Animalia
- Phylum: Chordata
- Class: Mammalia
- Order: Perissodactyla
- Family: Equidae
- Genus: Equus
- Species: caballus
Thus, the domestic horse belongs to the kingdom Animalia, phylum Chordata, class Mammalia, order Perissodactyla, family Equidae, genus Equus, and species caballus.