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Author Question: Preparing the environment does not usually include (Read 22 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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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
The four ways in which animals exchange heat with the environment are radiation, evaporation, convec
Organisms exhibit a diversity of behaviours, which include (clockwise from upper left), foraging and