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Author Question: The __________ dynasty unified China for the first time. A. Zhou B. Qin C. Tang D. Han E. ... (Read 119 times) |
Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
More than 4.4billion prescriptions were dispensed within the United States in 2016.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.