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astra-53 [7]
3 years ago
14

The main reason that it's important to test only one variable at a time is so that A. quantitative data can be recorded. B. scie

ntists can easily tell which variable caused the results. C. qualitative data can be recorded. D. scientists can have many hypotheses tested at once.
Biology
1 answer:
fiasKO [112]3 years ago
6 0
I think it's B cuz each variable does need to be viewed one at a time
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