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Author Question: Easy tasks are performed best under __________ levels of arousal and difficult tasks are performed ... (Read 45 times) |
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
A simple and easy-to-use tester can be made from a lighter plug and double banana plug that fits ...
Most PCV valves used on newer vehicles are secured with fasteners, which makes it more difficult ...