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Author Question: Sameroff (1993) stated that all life is characterized by disturbance that is overcome, and that only ... (Read 23 times) |
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.