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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

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By definition, when a medication is administered intravenously, its bioavailability is 100%.

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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

The three basic body plans of bilaterally symmetrical animals. The three basic body plans of bilaterally symmetrical animals.
Managing large bands of grazing animals requires detailed knowledge of local landscapes, especially Managing large bands of grazing animals requires detailed knowledge of local landscapes, especially
Providing structure and organization in the child’s environment may aid the development of ... Providing structure and organization in the child’s environment may aid the development of ...
Emotional Knowledge Across Cultures Emotional Knowledge Across Cultures
Economic activity as viewed by environment and ecological economists Economic activity as viewed by environment and ecological economists
Including Students with Special Needs: A Practical Guide for Classroom Teachers, 8th Edition Including Students with Special Needs: A Practical Guide for Classroom Teachers, 8th Edition
Video: The Nerve Impulse

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