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boyakko [2]
3 years ago
5

In a controlled experiment, why must all of the variables, except one, be kept constant throughout the experiment

Biology
1 answer:
qaws [65]3 years ago
5 0
In order to make sure that the test results of the variables are true or that you did not make a mistake in the experiment.

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Explanation:

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The body sizes of sympatric and allopatric P. cinereus and P. hoffmani are consistent with a hypothesis of character displacemen
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Answer:

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3 years ago
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