Animal tissues are classified into four types: 1. Epithelial Tissue: Covers the body and lines organs, providing protection and regulating secretion. 2. Connective Tissue: Provides structural support and connects different tissues (e.g., blood, bone, cartilage). 3. Muscular Tissue: Facilitates movement with skeletal, smooth, and cardiac muscles. 4. Nervous Tissue: Composed of neurons, it transmits electrical signals and coordinates body functions.