|
|
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.
Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
![Correlations on tests for a number of cognitive abilities are higher for monozygotic twin pairs (who ...](https://biology-forums.com/gallery/27/medium_660366_07_04_17_9_55_38_274881185.jpeg)
![Calcium channels and muscle contraction: (a) Calcium channels open as the action potential travels ...](https://biology-forums.com/gallery/28/medium_482573_28_04_17_1_26_02_285482374.jpeg)
![With the vehicle raised one foot (30 cm) off the ground, push down on the vehicle to check if it ...](https://biology-forums.com/gallery/29/medium_548020_25_05_17_2_59_26_29501121.png)