The reproductive system allows humans to make more living things of the same type.
Everything starts with two cells: a sperm (made by the male reproductive organs) and an ovule or egg (made by the female reproductive organs).
Next video is the whole process of creating a new human: from fertilization to the newborn baby. A summary of the nine moths into 15 minutes!!!
Are very funny the 2 videos. We are very ugly when we are little.
ResponderEliminarVioleta.
The video was interesting but when we are in the stomach of the mother we are a little ugly Sandra
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