More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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The average adult has about 21 square feet of skin.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Isotopes of Hydrogen
Non-Carbon Organic Molecules
Carbon Dioxide
Carbon Isotope ratio
Exchange of Oxygen and Carbon Dioxide
A carbon-14 nucleus decays to a nitrogen-14 nucleus by beta-minus decay. How much energy (in ...