In earthworm second layer of body wall is made up of-

Answer

To answer the question regarding the second layer of the body wall in an earthworm, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Identify the Layers of the Body Wall**:
- The body wall of an earthworm consists of multiple layers. It is important to recognize the order of these layers to determine which one is the second layer.

2. **Outermost Layer**:
- The outermost layer of the earthworm's body wall is called the **cuticle**. This layer serves as a protective barrier.

3. **Second Layer**:
- Beneath the cuticle, the next layer is the **epidermis**. This is the layer that lies directly under the cuticle and is responsible for various functions, including secretion and sensation.

4. **Muscular Layers**:
- Following the epidermis, there are two muscular layers: the **longitudinal muscle layer** and the **circular muscle layer**. These muscles are involved in the movement of the earthworm.

5. **Innermost Layer**:
- The innermost layer of the body wall is the **coelomic epithelium**, which lines the coelom (the body cavity).

6. **Conclusion**:
- Therefore, the second layer of the body wall in an earthworm is the **epidermis**.

### Final Answer:
The second layer of the body wall in an earthworm is made up of **epidermis**.