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The term "Freshman 15" is an expression commonly used in the United States and Canada to refer to weight gain during a student's first year in college.Although the 15 refers to a 15 lb. (6.8 kg) weight gain, the expression can apply to weight gain in general.
However, its accuracy declines at the extremes of body fat percentages, tending to slightly understate the percent body fat in overweight and obese persons (by 1.68–2.94% depending on the method of calculation), and to overstate to a much larger degree the percent body fat in very lean subjects (by an average of 6.8%, with up to a 13% ...
The brain-to-body mass ratio was however found to be an excellent predictor of variation in problem solving abilities among carnivoran mammals. [20] In humans, the brain to body weight ratio can vary greatly from person to person; it would be much higher in an underweight person than an overweight person, and higher in infants than adults.
Although the human brain represents only 2% of the body weight, it receives 15% of the cardiac output, 20% of total body oxygen consumption, and 25% of total body glucose utilization. [138] The brain mostly uses glucose for energy, and deprivation of glucose, as can happen in hypoglycemia, can result in loss of consciousness. [139]
The axial skeleton (80 bones) is formed by the vertebral column (32–34 bones; the number of the vertebrae differs from human to human as the lower 2 parts, sacral and coccygeal bone may vary in length), a part of the rib cage (12 pairs of ribs and the sternum), and the skull (22 bones and 7 associated bones).
10 15 exagram (Eg) 2.0 × 10 15 kg Total carbon stored in the terrestrial biosphere [123] 3.5 × 10 15 kg Total carbon stored in coal deposits worldwide [124] 10 16: 1 × 10 16 kg 951 Gaspra, the first asteroid ever to be closely approached by a spacecraft (rough estimate) [125] 1 × 10 16 kg Rough estimate of the total carbon content of all ...
Food consumption has increased over time. Annual per capita consumption of cheese was 4 pounds (1.8 kg) in 1909; 32 pounds (15 kg) in 2000; the average person consumed 389 grams (13.7 oz) of carbohydrates daily in 1970; 490 grams (17 oz) in 2000; 41 pounds (19 kg) of fats and oils in 1909; 79 pounds (36 kg) in 2000.
The animated movie Surf's Up (2007) features a surfing emperor penguin named Zeke "Big-Z" Topanga. [112] More than 30 countries have depicted the bird on their stamps – Australia, Great Britain, Chile and France have each issued several. [113] It has also been depicted on a 1962 10 franc stamp as part of an Antarctic expedition series. [114]