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The first heart sound (s1) is associated with closure of which heart valves?
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The negative impacts of nonnative species generally outweigh the positive impacts
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Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?
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Which of the follow describes a disadvantage secondary sources have compared to primary sources?
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The first heart sound (s1) is associated with closure of which heart valves?...
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