What is fertilization?

Explanation

### Step-by-Step Solution:

1. **Definition of Fertilization**: Fertilization is a biological process that occurs during reproduction. It involves the fusion of two specialized cells called gametes.

2. **Types of Gametes**: There are two types of gametes involved in fertilization:
- **Male Gamete**: This is known as spermatozoa (sperm).
- **Female Gamete**: This is known as ovum (egg).

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