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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Young adults usually grieve loss of a role, such as employment or the breakup of a relationship. Young adults usually grieve loss of a role, such as employment or the breakup of a relationship.
Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of
Empathy draws a more positive response from the patient because it is based on the willingness of th Empathy draws a more positive response from the patient because it is based on the willingness of th
Sample Exercise Program for Limited Older Adults (cont.) Sample Exercise Program for Limited Older Adults (cont.)
Fractures are diagnosed based on an X-ray of the broken bone. Shown here: a comminuted fracture of ... Fractures are diagnosed based on an X-ray of the broken bone. Shown here: a comminuted fracture of ...
Reading a Food Label The Nutrition Facts panel is easy to read—once you know what to look for Reading a Food Label The Nutrition Facts panel is easy to read—once you know what to look for
Video: Cardiac Cycle (Part 3 of 4)

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