Answer:
Ideally, the experimental and control groups are identical. As much as possible, the two groups should overlap in every characteristic.
Explanation:
At the beginning of your study, you need your two groups to be as statistically similar as is humanly possible. That way, when you control for other variables, you can reasonably attribute any statistically significant differences at the end of the study to your intervention.
C. Is the answer love....
Key is to lock as D. Substrate is to active site.
Explanation:
As I think vector is the correct one.
It is formed by winds
hope this helps you! (:
