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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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Excessive alcohol use costs the country approximately $235 billion every year.
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According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
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The average adult has about 21 square feet of skin.
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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.