Seminal vesicles in Pheretima are located in the segments

Options

A. 4 & 5
B. 3 & 4
C. 14 & 15
D. 11 & 12

Answer

**Step-by-Step Solution:**

1. **Identify the Organism**: The question refers to "Pheretima," which is another name for the earthworm. Understanding this is crucial as it helps in identifying the anatomical features of the organism.

2. **Understand the Structure in Question**: The question specifically asks about the location of seminal vesicles. Seminal vesicles are reproductive structures in earthworms that store sperm.

3. **Locate the Segments**: Earthworms have a segmented body structure. Each segment has specific organs. In the case of Pheretima, the seminal vesicles are located in specific segments.

4. **Identify the Segments for Seminal Vesicles**: It is known that in earthworms, the seminal vesicles are located in segments 11 and 12. This is an important fact to remember.

5. **Analyze the Options Provided**: The question likely provides multiple-choice answers. We need to evaluate each option against the known location of the seminal vesicles:
- Option A: Segments 4 and 5 (Incorrect)
- Option B: Segments 3 and 4 (Incorrect)
- Option C: Segments 14 and 15 (Incorrect)
- Option D: Segments 11 and 12 (Correct)

6. **Select the Correct Answer**: Based on the analysis, the correct answer is option D, which states that the seminal vesicles are located in segments 11 and 12.

**Final Answer**: The seminal vesicles in Pheretima (earthworm) are located in segments 11 and 12.

---