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Inessa [10]
3 years ago
12

During a controlled experiment, scientist isolates and tests. A. a conclusion B. a mass of information C. a control group D. a s

ingle variable
Biology
1 answer:
bonufazy [111]3 years ago
7 0
I believe the correct response is D. A single variable.
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learn more about vascular cambium here: brainly.com/question/859907

#SPJ4

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