The two clollaterial glands open into ger pouch 

Options

A. together
B. separately
C. does't open
D. all the above

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the co-lateral glands and how they open into the girth pouch. It is important to identify which organism is being referred to, which in this case is the cockroach.

2. **Identifying Co-lateral Glands**: Co-lateral glands are specific organs found in some insects, including cockroaches. These glands are associated with the female reproductive system.

3. **Function of Co-lateral Glands**: The primary function of the co-lateral glands is to produce secretions that cover the eggs during oviposition (the process of laying eggs). This secretion helps in forming a protective casing around the eggs.

4. **Mechanism of Action**: During oviposition, the secretions from the co-lateral glands cover two parallel rows of eggs. This protective layer becomes hardened and is known as the egg case, or "Ootheca."

5. **Opening of Glands**: The question specifically asks how the co-lateral glands open into the girth pouch. It is stated that these glands open separately, meaning each gland operates independently rather than together.

6. **Conclusion**: Based on the information provided, the correct answer to the question is that the two co-lateral glands open separately into the girth pouch.

### Final Answer:
The two co-lateral glands open separately into the girth pouch.

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