What Is the Umbilical Cord?
What Is the Umbilical Cord? Inside the womb of a pregnant woman or animal, a placenta is formed, through which the unborn baby is nourished. The baby is connected to...
Read MoreWhat Is the Umbilical Cord? Inside the womb of a pregnant woman or animal, a placenta is formed, through which the unborn baby is nourished. The baby is connected to...
Read MoreWhere Do Teeth Come From? Teeth are formed from specialized cells which produce the three parts of the tooth—root, neck, and crown. The outer coating of the crown is...
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