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kotykmax [81]
3 years ago
10

An experimenter wanted to test the effects of cigarette smoking on rats. She infused the cages of 50 rats with cigarette smoke a

nd the cages of another 50 rats with pure, clean air. The rats that received the clean air were the ____.​
Biology
1 answer:
Feliz [49]3 years ago
4 0

Answer:

Control group

Explanation:

A control group is<em> a group of individuals in an experiment where the independent variable being tested (the exposition to cigarette smoke in this case) can't influence the results.</em> This control group will be then compared to the experimental group (exposed to the smoke) to see the effect of the variable evaluated.

I hope you find this information usefula nd interesting! Good luck!

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