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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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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.

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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

The carbon cycle. Numbers are storage as 1015 g or fluxes as 1015 g per year (data from Schlesinger The carbon cycle. Numbers are storage as 1015 g or fluxes as 1015 g per year (data from Schlesinger
Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th Reindeer antlers grow again each year under a layer of fur called velvet. This reindeer is losing th
Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period
Foods for Baby’s First Year Foods for Baby’s First Year
Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ... Charlie Stone wants to retire in 30 years, and he wants to have an annuity of $1000 a year for ...
Video: Erythropoietin (EPO)

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