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katovenus [111]
3 years ago
10

Help me what is a control variable?

Biology
2 answers:
poizon [28]3 years ago
8 0

Explanation:

a control variable is a variable that remains unchanged of held constant:)

arsen [322]3 years ago
3 0

a control variable in scientific experimentation us an experimental element which is constant and unchanged throughout the course of a investigation

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