There are 20 feet of blood vessels in each square inch of human skin.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Play in Four Cultures Across cultures, play is the most common activity in early childhood. Source:
Using a water-based cleaning system helps reduce the hazards from using strong chemicals.
World Languages
World Religions
Foundations of evidence-based practice.
Globalization and Diversity: Geography of a Changing World, 4th Edition