Fertilization
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When a male reproductive cell (sperm) joins with a female reproductive cell (egg)
Real World Example
Imagine trying to fit two puzzle pieces together to complete a picture. In the same way, fertilization occurs when a male reproductive cell, or sperm, perfectly joins with a female reproductive cell, or egg, to create new life. Just as the right puzzle pieces must align to form a complete image, the sperm and egg must meet and combine their unique genetic material to start the development of an embryo, highlighting how precise connections lead to bigger outcomes.
Practice Version
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