When the gestation period is over, the baby comes out of the mother's body through the ______.

Options

A. Uterus
B. Vagina
C. Embryo
D. Fallopian tube

Answer

**Step-by-Step Solution:**

1. **Understanding Gestation Period**: The gestation period refers to the time during which a developing embryo or fetus is carried in the mother's womb. It ends when the baby is ready to be born.

2. **Identifying the Birth Canal**: When the gestation period is over, the baby must exit the mother's body. The main structures involved in this process are the uterus and the vagina.

3. **Role of the Uterus**: The uterus is where the embryo implants and develops during pregnancy. However, it is not the structure through which the baby exits the body.

4. **Role of the Vagina**: The vagina is the correct structure through which the baby is delivered. It is an elastic and muscular canal that connects the uterus to the outside of the body.

5. **Eliminating Incorrect Options**:
- **Embryo**: This is the developing organism but not a passageway for birth.
- **Fallopian Tube**: This is where fertilization occurs, not where the baby exits.

6. **Conclusion**: Therefore, when the gestation period is over, the baby comes out of the mother's body through the vagina.

**Final Answer**: Vagina

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