The location of lymph glands in Pheretima is

Options

A. 4, 5 and 6
B. 7, 8 and 9
C. 14, 15 and 16
D. 26th and behind

Answer

### Step-by-Step Solution:

1. **Identify the Organism**: The question refers to Pheretima, which is commonly known as the earthworm. It belongs to the phylum Annelida.

2. **Understand the Body Structure**: Earthworms have a segmented body structure, meaning their body is divided into multiple segments, each of which can have different functions and structures.

3. **Locate the Lymph Glands**: The lymph glands in Pheretima are specifically located on the dorsal blood vessel.

4. **Segment Identification**: According to the information provided, the lymph glands are found from the 26th segment to the last segment of the earthworm.

5. **Functions of Lymph Glands**: The lymph glands secrete phagocytes, which are cells that help in destroying harmful bacteria. This is important for the immune response in the earthworm.

6. **Conclusion**: Based on the information, the correct answer to the question regarding the location of lymph glands in Pheretima is from the 26th segment and behind.

### Final Answer:
The lymph glands in Pheretima (earthworm) are located from the 26th segment to the last segment.

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