เนื้อหาค่ะ
A group of agricultural researchers conducted an experiment to study the growth rates of plants at various temperatures. In their laboratory, they divided primrose, cucumber, and corn plants into a number of different groups. During the experiment, they kept the different groups of primrose plants at different but constant temperatures for twenty-four hours every day. They did the same for the corn and cucumber plants. The graph shows the growth rates that they recorded for the different groups of plants.

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