The brood pouch in female cockroach is formed by

Options

A. 7th, 8th and 9th sterna
B. 9th sternum, 9th and 10th terga
C. 6th, 8th and 9th sterna
D. 9th tergum, 8th and 9th sterna

Answer

To answer the question, "The brood pouch in female cockroach is formed by," we need to analyze the anatomy of the female cockroach and understand which structures contribute to the formation of the brood pouch.

### Step-by-Step Solution:

1. **Understand the Anatomy of Female Cockroach**:
- The female cockroach has a specialized structure for carrying and protecting its eggs, known as the brood pouch or ootheca.

2. **Identify the Structure Forming the Brood Pouch**:
- The brood pouch is primarily formed by the **abdominal segments** of the female cockroach. Specifically, it is formed by the **last few segments of the abdomen**.

3. **Function of the Brood Pouch**:
- The brood pouch serves to protect the developing eggs until they are ready to hatch. It provides a safe environment for the eggs and helps in their development.

4. **Conclusion**:
- Therefore, the correct answer to the question is that the brood pouch in female cockroach is formed by the **last abdominal segments**.