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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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There are more bacteria in your mouth than there are people in the world.