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Author Question: For the following questions consider these characteristics:I. radial symmetryII. bilateral ... (Read 31 times) |
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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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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There are 20 feet of blood vessels in each square inch of human skin.
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There are 60,000 miles of blood vessels in every adult human.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.