When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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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.
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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Lyme Disease Concept Map
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Concept map for jacob's awareness
How our participation in social groups shapes our self-concept is a focus of symbolic ...