Biology, 09.01.2021 01:00 PKTHUNDER5011
Which statement about the use of independent variables in controlled experiments is correct?
1.
A different independent variable must be used each time an experiment is repeated.
2.
The independent variables must involve time.
3.
Only one independent variable is used for each experiment.
4.
The independent variables state the problem being tested.
Answers: 3
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Which statement about the use of independent variables in controlled experiments is correct?
1.
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