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Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
By definition, when a medication is administered intravenously, its bioavailability is 100%.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.