1) The students used a cork borer to cut cylinders from the carrot. Describe how the students should cut these cylinders to make sure that this was a fair test and would produce reliable results.
- Through one tissue
2) It was important to have a control group in this trial. Explain why.
- To allow comparison
- AND (YOLO, do both because some MS want this instead) To see effectiveness of new drug to treat asthma (or whatever the question is about)