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Biology, 10.12.2021 19:20 jenni333

5. Which of the following statements about a con- trolled experiment is true?
a. All the variables must be kept the same.
b. Only one variable is tested at a time.
c. Everything can be studied by setting up a co
trolled experiment.
d. Controlled experiments cannot be perform
on living things

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5. Which of the following statements about a con- trolled experiment is true?
a. All the var...

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