Animal tissues are broadly classified into 4 types on the basis of -

Options

A. Structures and functions
B. Structures and origins
C. Functions and origin
D. Origin only

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the basis on which animal tissues are classified into four types.

2. **Identifying the Types of Tissues**: Animal tissues are classified into four main types:
- Epithelial Tissue
- Muscle Tissue
- Nervous Tissue
- Connective Tissue

3. **Analyzing the Classification Criteria**: To classify these tissues, we need to consider the characteristics that differentiate them. The classification is based on:
- **Structure**: The physical arrangement and organization of cells in the tissue.
- **Function**: The role or purpose that the tissue serves in the body.

4. **Examples of Structure and Function**:
- **Epithelial Tissue**: Has a free surface and functions in protection, secretion, and absorption.
- **Muscle Tissue**: Composed of filaments that facilitate movement.
- **Nervous Tissue**: Responsible for impulse conduction and nerve function.
- **Connective Tissue**: Provides support and links different parts of the body, including blood, cartilage, and bones.

5. **Conclusion**: Based on the analysis, animal tissues are broadly classified into four types on the basis of their **structure and function**.

6. **Final Answer**: The correct option is **A) Structure and Functions**.

---