|
|
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?
The human body produces and destroys 15 million blood cells every second.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
The average adult has about 21 square feet of skin.
Did you know?
Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.