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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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Illicit drug use costs the United States approximately $181 billion every year.
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There are 60,000 miles of blood vessels in every adult human.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.