OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a controlled experiment, how many variables can be worked with at a time?
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one
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none
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two or more
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how ever many makes sense.
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Explanation:
Detailed explanation-1: -A controlled experiment requires at least two variables: a manipulated variable and a response variable.
Detailed explanation-2: -A controlled experiment works with one variable at a time. If several variables were changed at the same time, the scientist would not know which variable was responsible for the observed results.
There is 1 question to complete.