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Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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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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Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Fibroid tumors, or leiomyomas. Fibroids develop from the uterus to form a variety of hard, round ben Fibroid tumors, or leiomyomas. Fibroids develop from the uterus to form a variety of hard, round ben
Routes of infection for pyelonephritis. Routes of infection for pyelonephritis.
Young recent immigrants often develop two identities Young recent immigrants often develop two identities
Mirror recognition and self-naming develop at almost exactly the same time Mirror recognition and self-naming develop at almost exactly the same time
Days 24–25 Pharyngeal arches develop. They will contribute to the face, neck, larynx, and pharynx. Days 24–25 Pharyngeal arches develop. They will contribute to the face, neck, larynx, and pharynx.
Video: Embryonic development - Weeks 5 to 8

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