Fertilization is __________ in humans. (external/internal)

Answer

To answer the question "Fertilization is __________ in humans," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Fertilization**:
- Fertilization is the process where the male and female gametes (sperm and egg) fuse to form a zygote.

2. **Identify the Types of Fertilization**:
- There are two main types of fertilization: internal and external.
- **Internal Fertilization**: This occurs inside the female's body.
- **External Fertilization**: This occurs outside the female's body, typically in an external medium like water.

3. **Analyze the Process in Humans**:
- In humans, fertilization occurs when sperm from the male fertilizes the egg from the female.
- This process takes place inside the female's reproductive system, specifically in the fallopian tubes.

4. **Conclusion**:
- Since the fusion of gametes occurs inside the female body, we conclude that fertilization in humans is **internal**.

### Final Answer:
Fertilization is **internal** in humans.

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