Answer:
d. act as a control that would ensure that the results obtained are due to a difference in only one variable.
Explanation:
The primary reason for including a comparison population within the design of this experiment in which there was a need to also examine a comparison population of humans in which births took place every month would be to act as a control that would ensure that the results obtained are due to a difference in only one variable. This would ensure more accuracy of the experiment in relation to the factor considered.
I believe the answer is: <span> they impede scientific progress
The scientific findings that derived from a research often would be used as a basis for other research in the future. This method allow our scientific development to keep moving forward.
</span><span>When a research knowingly falsified data, the basis for future scientific research is already wrong to begin with and this would stunt the development.</span>
Charlemange restored order in the old Roman Empire by establishing a central government over wwestern Europe. Hope this helped dm me for further explianation