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Biology, 21.06.2019 16:30
25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?
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Aplant may open end close its stomata to prevent excess water loss and maintain
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This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement
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John nash often heard voices tells him to do things and believed that he was being followed by the c...
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