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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?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

