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Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.