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Author Question: In many cases, a serf who resided in a city for a year and a day became a free person. a. True ... (Read 17 times) |
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.
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.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
People about to have surgery must tell their health care providers about all supplements they take.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.