Chlitellum in earthworm includes segments.

Options

A. 19,20,21
B. 14,15,16
C. Last 3 segments
D. first three

Answer

**Step-by-Step Solution:**

1. **Understanding Clitellum**: The clitellum is a specialized, glandular region found in annelids such as earthworms. It is not segmented and appears as a thickened band around the body.

2. **Identifying the Segments**: The clitellum is specifically located in the 14th, 15th, and 16th segments of the earthworm's body. It is important to note that these segments are where the clitellum is present.

3. **Function of Clitellum**: The clitellum plays a crucial role during reproduction. It secretes mucus and forms cocoons that are essential for the storage of eggs during the reproductive process.

4. **Conclusion**: Based on the information about the location and function of the clitellum, we can conclude that it includes segments 14, 15, and 16 of the earthworm.

5. **Final Answer**: Therefore, the correct answer to the question is that the clitellum in earthworms includes segments 14, 15, and 16.

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