- Grade 11 and 12 Mathematics (Moderator: geoffrey)
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Author Question: Using the standard normal curve, the z-score representing the 95th percentile is 1.645. Indicate ... (Read 85 times) |
- Grade 11 and 12 Mathematics (Moderator: geoffrey)
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Approximately 25% of all reported medication errors result from some kind of name confusion.
About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.