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Author Question: Which of the following instruments is inserted into narrowed or constricted ducts and tubes for the ... (Read 25 times) |
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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.
Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.