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Human sperm arrives at the egg cell.
Liverworts are a kind of small plant with a complex life cycle that includes fertilization. The sperm and the egg come together to make a zygote. The zygote grows into an embryo.

Fertilization (British English spelling: fertilization) is what happens when a female's ovum (or "egg") joins together with a male's sperm and they form a zygote. Fertilization is also called conception. Biologists call a fertilized egg a zygote. A zygote grows into an embryo.

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