ife advocates believe that a human is made as soon as the sperm joins with the egg. They basically say that a zygote is biologically alive, that it fulfills the four criteria needed to establish biological life: metabolism, growth, reaction to stimuli, and reproduction. The pro-life advocates usually have the upper hand in this argument, since a life is definitely made at birth, and also the fact that it is not only human, but I believe it is a unique human individual, since the sperm and egg that joined together are from two totally unique people. P
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