Which of the following is correct match regarding structures and their location in cockroach ?

Options

A. Anal style : `10^(th)` abdominal segment
B. Ovary : `4^(th) - 6^(th)` abdominal segments
C. Testes : `2^(nd) - 6^(th)` abdominal segments
D. Mushroom gland : `6^(th) - 7^(th)` - abdominal segments

Answer

To solve the question regarding the correct match of structures and their locations in cockroaches, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Structures and Their Locations**:
- **Anal Styles**: These are found only in male cockroaches. They are male reproductive structures located in the 10th abdominal segment.
- **Ovary**: This is found in female cockroaches and is located in the 13th segment.
- **Testis**: This is part of the male reproductive system and is located in the 4th to 6th body segments.
- **Mushroom Gland**: This is a male reproductive structure found in the 6th to 7th abdominal segment.

2. **Evaluate Each Structure**:
- **Anal Styles**: Incorrectly stated as being in the 10th segment; it is actually found in the 9th segment.
- **Ovary**: Correctly stated as being in the 13th segment.
- **Testis**: Incorrectly stated as being from the 2nd to 6th segment; it is actually from the 4th to 6th segment.
- **Mushroom Gland**: Correctly stated as being in the 6th to 7th segment.

3. **Determine the Correct Match**:
- The only structure that is correctly matched with its location is the **Mushroom Gland**, which is found in the 6th to 7th abdominal segment.

4. **Conclusion**:
- Based on the analysis, the correct answer is the **Mushroom Gland** in the 6th to 7th abdominal segment.

### Final Answer:
The correct match regarding structures and their location in cockroach is the **Mushroom gland**, which is found in the **6th to 7th abdominal segment**.