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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?
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Did you know?
The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.