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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Asthma cases in Americans are about 75% higher today than they were in 1980.
The FDA recognizes 118 routes of administration.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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