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Question: When Ms. Perry wanted to find out what type of communication was occurring in her preschool ... (Read 1919 times)
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.