Lateral hearts are located in 

Options

A. 7,9,10,11
B. 8,9,10,12
C. 9,10,12,13
D. 7,9,12,13

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the location of lateral hearts. We need to identify where these structures are found.

2. **Identifying the Organism**: Lateral hearts are specifically associated with certain organisms. In this case, we are discussing earthworms, which belong to the phylum Annelida.

3. **Defining Lateral Hearts**: In earthworms, lateral hearts are muscular vessels that help in the circulation of blood. They are not true hearts but serve a similar function in aiding blood flow.

4. **Locating the Segments**: The lateral hearts are found in specific segments of the earthworm. According to the information provided, they are located in segments 7, 9, 12, and 13.

5. **Connecting to Vessels**: The lateral hearts connect the dorsal and ventral blood vessels in the earthworm, facilitating the circulation of blood throughout its body.

6. **Final Answer**: Therefore, the lateral hearts are located in segments 7, 9, 12, and 13 of the earthworm.

**Conclusion**: The correct answer is that lateral hearts are located in segments 7, 9, 12, and 13 of the earthworm.

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