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Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Did you know?
Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
Did you know?
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."