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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

As sessile organisms, plants have evolved many mechanisms to mitigate the potential damage of abioti As sessile organisms, plants have evolved many mechanisms to mitigate the potential damage of abioti
Photosynthetic Organisms Changed Earth's Atmosphere Photosynthetic Organisms Changed Earth's Atmosphere
The organic compounds from which most cellular materials are constructed: the ABCs of biochemistry The organic compounds from which most cellular materials are constructed: the ABCs of biochemistry
Organic molecules Organic molecules
Relationship between inorganic and organic nitrogen metabolism Relationship between inorganic and organic nitrogen metabolism
Increased acidity inhibits the growth of coral and other carbonate shell-building organisms Increased acidity inhibits the growth of coral and other carbonate shell-building organisms
Video: Energy Flow - Trophic Levels and Food

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