The part of the alimentary canal that starts from middle segment of clitellum and extends upto the last segment is 

Options

A. stomach
B. gizzard
C. intestine
D. rectum

Answer

To answer the question regarding the part of the alimentary canal that starts from the middle segment of the clitellum and extends up to the last segment, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Clitellum**:
- The clitellum is a thickened, glandular, non-segmented part of the body found in earthworms and some leeches. It is involved in reproduction and secretes a viscid sac for egg storage.

2. **Identify the Segments of the Earthworm**:
- The body of the earthworm is divided into segments. The clitellum is located in segments 14 to 17.

3. **Determine the Starting Point**:
- The middle segment of the clitellum is segment 15.

4. **Identify the Ending Point**:
- The alimentary canal continues from segment 15 to the last segment of the earthworm.

5. **Recall the Parts of the Alimentary Canal**:
- The alimentary canal of an earthworm includes the mouth, buccal cavity, pharynx, esophagus, gizzard, stomach, and intestine.

6. **Locate the Intestine**:
- The intestine begins at segment 15 and extends to the last segment of the earthworm.

7. **Conclusion**:
- Therefore, the part of the alimentary canal that starts from the middle segment of the clitellum (segment 15) and extends to the last segment is the **intestine**.

### Final Answer:
The part of the alimentary canal that starts from the middle segment of the clitellum and extends up to the last segment is the **intestine**.

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