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kkurt [141]
3 years ago
15

Why do we want to test one variable at a time? a. Because it is hard to setup a data table with more b. It is what has always be

en done c. To know what is causing the changes d. No one really knows​
Biology
1 answer:
saw5 [17]3 years ago
7 0

Answer:

C

Explanation:

If you have more than one variable then you wont know which variable caused the change. Hope this helped, if it did give it a thanks or whatever.

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