Female genital system possess a branch gland, that opens into 

Options

A. genital pouch
B. vitellarium
C. germarium
D. vagina

Answer

To answer the question regarding the female genital system and the branch gland, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Gland**: The question mentions a "branch gland" in the female genital system. In the context of certain organisms, such as the cockroach, this gland is important for reproductive functions.

2. **Understand the Function of the Gland**: The branch gland is responsible for secreting substances that are crucial for the ovum (egg). These secretions play a role in reproduction.

3. **Determine the Opening of the Gland**: The question asks where this branch gland opens. The options provided are:
- Genital pouch
- Vitelarium
- Germarium
- Vagina

4. **Analyze Each Option**:
- **Vagina**: This is simply the opening of the female reproductive system and does not have a branch gland opening into it.
- **Vitelarium**: This is not typically associated with the female reproductive system in cockroaches.
- **Germarium**: This is related to the formation of eggs but does not serve as the opening for the branch gland.
- **Genital Pouch**: This is the correct option where the branch gland opens. The genital pouch is located in the last segments of the abdomen in cockroaches.

5. **Conclusion**: Based on the analysis, the branch gland in the female genital system opens into the **genital pouch**.

### Final Answer:
The female genital system possesses a branch gland that opens into the **genital pouch**.

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