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Author Question: When a firm hires a worker for one hour, the marginal benefit to that firm equals the: (Read 66 times) |
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Cyanide works by making the human body unable to use oxygen.
Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.
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.
It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.