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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

The stages of labor and delivery. (A) During the dilation stage the cervix thins and dilates to 10 c The stages of labor and delivery. (A) During the dilation stage the cervix thins and dilates to 10 c
As their numbers grow and their resources and health improve, the elderly will enjoy life more and ... As their numbers grow and their resources and health improve, the elderly will enjoy life more and ...
Earth’s Mineral Resources Earth’s Mineral Resources
Role of Factors of Production in Determining Growth, 1975–2009 Role of Factors of Production in Determining Growth, 1975–2009
Stem Cell Production Stem Cell Production
Complete the following production chart and plot the points. Complete the following production chart and plot the points.
Video: Genetic distance between human groups

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