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Author Question: The physical movement of air into and out of lungs is termed A) external respiration. B) internal ... (Read 99 times) |
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.