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In 1864, the first barbiturate (barbituric acid) was synthesized.

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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.

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If you could remove all of your skin, it would weigh up to 5 pounds.

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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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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.

Where mangrove diversity is high, mangrove species show clear patterns of vertical zonation relative Where mangrove diversity is high, mangrove species show clear patterns of vertical zonation relative
How Seismic Waves Pass through Rock How Seismic Waves Pass through Rock
The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p
Dust and dirt in the air are trapped in the air filter so they do not enter the engine. Dust and dirt in the air are trapped in the air filter so they do not enter the engine.
People using walkers typically have a high level of mobility impairment. People using walkers typically have a high level of mobility impairment.
The pH scale is logarithmic. A low pH indicates acidic conditions, whereas a high pH indicates ... The pH scale is logarithmic. A low pH indicates acidic conditions, whereas a high pH indicates ...
Video: Cellular Defects - Osteoblasts, Osteoclasts and Osteocytes

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