What type of fertilisation takes place in a hen ?

Explanation

**Step-by-Step Solution:**

1. **Understanding Fertilization**: Fertilization is a biological process where the male gamete (sperm) and female gamete (egg) fuse together. This is a crucial step in reproduction.

2. **Types of Fertilization**: There are two main types of fertilization:
- **Internal Fertilization**: This occurs inside the female's body.
- **External Fertilization**: This occurs outside the female's body.

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