Vaccines prevent between 2.5 and 4 million deaths every year.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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The horizontal fraction bar was introduced by the Arabs.
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The longest a person has survived after a heart transplant is 24 years.
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
Bronfenbrenner’s model of the ecological-systems approach to studying development. He suggested that
Velocity-time Graph
Life Cycle Nutrition: Toddlers through the Later Years
Physics: Power, Energy and Time
Physics: Power, Energy and Time
Over time, cells acquire mutations. Two independently acquired mutations in the same cell may be suf