In earthworm, skeleton-like function is performed by

Options

A. Coelomic fluid
B. Alimentary canal filled with food
C. Typhlosole
D. Clitellum

Answer

To answer the question "In earthworm, skeleton-like function is performed by," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which structure in the earthworm performs a skeleton-like function. This implies we are looking for a structure that provides support or aids in movement.

2. **Analyze the Options**:
- **Option 1: Coelomic fluid** - This is the fluid found within the coelom (the body cavity) of the earthworm.
- **Option 2: Alimentary canal filled with food** - This refers to the digestive tract of the earthworm.
- **Option 3: Teflosol** - This is a structure in the intestine that increases the surface area for absorption.
- **Option 4: Clitellum** - This is a glandular tissue involved in reproduction, found in segments 14 to 16.

3. **Eliminate Incorrect Options**:
- **Clitellum**: It does not perform a skeleton-like function; it is involved in reproduction.
- **Teflosol**: This structure is involved in absorption, not in providing skeletal support.
- **Alimentary canal**: While it is important for digestion, it does not provide a skeleton-like function.

4. **Identify the Correct Option**:
- **Coelomic fluid**: This fluid fills the coelom and provides hydrostatic pressure, which helps in movement and support. It acts like a skeleton by allowing the earthworm to move through contraction and relaxation of its muscles.

5. **Conclusion**: The structure that performs a skeleton-like function in earthworms is the **coelomic fluid**.

### Final Answer:
The correct option is **Coelomic fluid**.

---