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Did you know?
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
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?
Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.