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Did you know?

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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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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Medication errors are more common among seriously ill patients than with those with minor conditions.

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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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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.

Nuclear division at the DNA level Nuclear division at the DNA level
Epidemiologists look for the causes of disease, such as toxic waste and industrial pollution, at the Epidemiologists look for the causes of disease, such as toxic waste and industrial pollution, at the
Dermatological changes with myxedema can occur behind the eyes or in the lower leg, as shown here. Dermatological changes with myxedema can occur behind the eyes or in the lower leg, as shown here.
Normal red blood cells (RBCs) are flexible and donut-shaped and move with ease through blood ... Normal red blood cells (RBCs) are flexible and donut-shaped and move with ease through blood ...
Control of blood glucose level. Control of blood glucose level.
Rising sea level threatens coastal communities around the world Rising sea level threatens coastal communities around the world
Video: Import of Dietary Glucose from Intestines to Bloodstream

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