Author Question: Perfect competition is characterized by many firms and no barriers to entry. (Read 22 times)


ktidd

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ktidd

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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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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

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