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Author Question: As an astronaut is lifted into Earth's orbit, what is the first change to take place in response to ... (Read 92 times) |
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
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.
There are 20 feet of blood vessels in each square inch of human skin.
Approximately 25% of all reported medication errors result from some kind of name confusion.
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.