"Royal jelly" is secreted by worker Honey-bees. Name the gland which secretes "royal jelly".

Options

A. Labial gland
B. Maxillary glands
C. Mandibular gland
D. Labral gland

Answer

To answer the question about which gland secretes "royal jelly" in worker honey bees, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Royal Jelly**: Royal jelly is a special substance produced by honey bees, specifically for feeding the queen bee and larvae. It is rich in nutrients and plays a crucial role in the development of the queen bee.

2. **Identifying the Glands**: Honey bees have several glands that are involved in the secretion of various substances. The key glands to consider in this context are:
- Labial glands
- Maxillary glands
- Mandibular glands
- Hypopharyngeal glands

3. **Function of Glands**:
- **Labial Glands**: These are salivary glands that help in food manipulation and digestion.
- **Maxillary Glands**: These also play a role in the secretion of saliva but are not primarily responsible for royal jelly.
- **Mandibular Glands**: These glands are specifically responsible for the secretion of royal jelly.
- **Hypopharyngeal Glands**: These glands also contribute to the secretion of royal jelly.

4. **Conclusion**: The primary gland responsible for the secretion of royal jelly in worker honey bees is the **Mandibular Gland**.

5. **Final Answer**: Therefore, the answer to the question is the **Mandibular Gland**.