3 years ago

Which of the following is the best explanation of why a second control group was included in this experiment

Biology

2 answers:

konstantin123 [22]3 years ago

5 0

The answer is A :)

C - straight up a bad explanation, doesn't make sense

D - the experiment isn't about getting different infections.. It's about curing the common cold

B - they didn't test with different kinds of orange juice

Anestetic [448]3 years ago

5 0

<h2>Answer: To help researchers conclude that results are related to the new </h2><h2>drug and not to the orange juice</h2>

Explanation: correct on apex as of 5/20/19

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