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Did you know?
People about to have surgery must tell their health care providers about all supplements they take.
Did you know?
Your heart beats over 36 million times a year.
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?
There are more sensory neurons in the tongue than in any other part of the body.
Did you know?
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).