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Author Question: Bell Telephone Laboratories invented the ________, which replaced the vacuum tube. (Read 210 times) |
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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Everyone has one nostril that is larger than the other.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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There are 60,000 miles of blood vessels in every adult human.