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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

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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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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Defensive mutualism involves species that receive food or shelter in return for providing protection Defensive mutualism involves species that receive food or shelter in return for providing protection
Food Pyramid Food Pyramid
A severe food shortage occurred in the Netherlands during the “Hunger Winter” of 1944–1945. A severe food shortage occurred in the Netherlands during the “Hunger Winter” of 1944–1945.
How Far Did Your Food Travel? How Far Did Your Food Travel?
Who Oversees the Food Supply? Who Oversees the Food Supply?
Hotels Hotels
Video: Definition of heart rate

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