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Author Question: Identify the alkene that cannot be drawn cis and trans. (Read 212 times) |
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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.