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Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.