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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Developmental regulation of human globin genes Developmental regulation of human globin genes
Connell's experimental manipulation of species indicated the presence of competition. Connell's experimental manipulation of species indicated the presence of competition.
Two species of granivorous rodents living in the Chihuahuan Desert: (a) the kangaroo rat, Dipodomys Two species of granivorous rodents living in the Chihuahuan Desert: (a) the kangaroo rat, Dipodomys
A single cell from an early-stage human embryo A single cell from an early-stage human embryo
Cast of a Fossil Dunkleosteus, with a human to illustrate scale Cast of a Fossil Dunkleosteus, with a human to illustrate scale
Human evolution Human evolution
Video: Lower Limb Arteries Animation

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