In earthworm, efficiency of food absorption is due to structure

Options

A. Villi
B. Typhlosole
C. Caecum
D. Stomach

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the structure in earthworms that contributes to the efficiency of food absorption.

2. **Identifying the Digestive System of Earthworm**: In earthworms, the digestive system includes various parts such as the mouth, pharynx, esophagus, crop, gizzard, intestine, and anus.

3. **Focusing on the Intestine**: The intestine is where the majority of digestion and absorption occurs.

4. **Identifying Key Structures**: Among the structures in the intestine, we need to identify which one is specifically responsible for enhancing the absorption of nutrients.

5. **Understanding Typhlosole**: The typhlosole is a significant structure found in the intestine of earthworms. It is a fold of the intestinal wall that increases the surface area available for absorption.

6. **Comparing with Other Options**:
- **Villi**: These are small projections found in the intestines of vertebrates, not in earthworms.
- **Cecum**: This is a part of the intestine but is not primarily responsible for absorption.
- **Stomach**: While digestion occurs here, it is not the main site for absorption.

7. **Conclusion**: The structure that enhances the efficiency of food absorption in earthworms is the **typhlosole**.

**Final Answer**: The efficiency of food absorption in earthworms is due to the structure called **typhlosole**.

---