|
|
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
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.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.