|
Author Question: Which orogeny was part of the general worldwide tectonic activity that occurred when Gondwana united ... (Read 35 times) |
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.
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.