Babies come from a process called reproduction, which involves a sperm cell from a male fertilizing an egg cell from a female. This typically occurs through sexual intercourse, where sperm is deposited in the female's reproductive system. Once the sperm fertilizes the egg, it forms a zygote, which develops into an embryo. The embryo implants itself in the lining of the uterus, where it grows and develops over about nine months into a baby, ultimately leading to childbirth.
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