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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Anterior and Posterior Cervical Triangles Anterior and Posterior Cervical Triangles
Anterior and posterior directions Anterior and posterior directions
Dorsal fulling for the back, ribs, and lymphatic reflexes. Dorsal fulling for the back, ribs, and lymphatic reflexes.
The anterior corticospinal pathway The anterior corticospinal pathway
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
Opposite polarity of synthesis along the two strands of DNA Opposite polarity of synthesis along the two strands of DNA
Video: Osmosis - water transport

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