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Author Question: Examine the geologic time scale shown here. Which is the earliest period listed in the Mesozoic? ... (Read 45 times) |
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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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 average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.
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Cyanide works by making the human body unable to use oxygen.