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For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system
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Which process of living things produces water that enters the water cycle
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In an hydrogen ion pump the energy is used to join small molecules together to make larger ones which factor most likely has the greatest effect on the number of molecules mitochondria can produce
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Which of these characteristics is common only at the embryonic stage of fish and humans, and is sugg...
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