A researcher is studying the effects of different artificial sweeteners on rats. Sixty full-grown rats were divided into six groups of ten. The first group received no artificial sweeteners. The rest of the groups received various artificial sweeteners. Each group of rats were treated at the same points of the day for four months. The rats were than biologically analyzed after each day and results were analyzed at the end of the experiment. What was the control in the experiment?

A) The size of the rats.
B) The length of the experiment.
C) The group of rats that received artificial sweetener.
Eliminate
D) The group of rats that received no artificial sweetener.

Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research. b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research. c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data. d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)