There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
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Your heart beats over 36 million times a year.
Pulmonary function test: spirometry. (a) Normal respiratory volumes, as measured during spirometry.
Ankle Reflex Test
How Seismic Waves Pass through Rock
Performing a Spirometry Test to Measure Forced Vital Capacity
How to perform the concavity test and second derivative test for a function (Part 2)