Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
Stem cell research may cure diabetes, but lacks funding
Selected skeletal muscles (anterior view).
Selected Local Anesthetics
Selected Antiemetics
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