Biology

Paris Terrell

13 December, 05:33

I pts

While testing the effectiveness of a new antibiotic, researchers use three groups with

the following treatments:

• Group 1--receives a placebo

• Group 2: receives antibiotic A

• Group 3: receives antibiotic B

Which of the groups would not be considered a control group?

o the group that received antibiotic A

o the group that received the placebo

o the group that received antibiotic B

O both groups receiving antibiotic A and B