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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.