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Author Question: In 1821, this person opened the first U.S.A. school for students who are blind, the New England ... (Read 70 times) |
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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.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The FDA recognizes 118 routes of administration.
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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Older adults may grieve intensely over the loss of a person or situation that has been a part of the
In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th