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Author Question: A soil ____________________ consists of one or more major soils and one or more minor soils; it ... (Read 113 times) |
Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.