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Which of the following reasons best explains why a scientist would want to study rock formations and living organisms in previously unexplored water habitats? A. to test the predictions of current theories B. to discover new aspects of the natural world C. to explain recently observed phenomena D. to test the conclusions of prior investigations
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Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins
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Which of the following reasons best explains why a scientist would want to study rock formations and...
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