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Author Question: According to __________, the low-income, less-developed nations can improve their standard of living ... (Read 169 times) |
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
There are 20 feet of blood vessels in each square inch of human skin.