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Author Question: Assume that an aqueous solution of hydroxide ion, OH-, represented by unshaded spheres, is allowed ... (Read 1207 times) |
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
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.