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Author Question: Which statement about the nitrogen cycle is true? (Read 767 times) |
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.
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Cyanide works by making the human body unable to use oxygen.
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There are approximately 3 million unintended pregnancies in the United States each year.