A doctor is studying the effectiveness of a new anti-aging cream. He posts an ad for subjects at two local colleges. He assigns 95 students from University A to the treatment group (daily applications of the experimental anti-aging cream ) and 100 students from Community College ( application) to the control group. After 6 months of the study, Dr. Foster gives all of the students in each group a skin test. The treatment group scores an average of 20 points higher than the control group (a significant difference ). Based on these findings he declares that the anti aging cream increases your skin's youthful glow. Name one way to improve this doctor's experiment .

Listed in the item bank are some key terms and expressions associated with the categories seen in the venn diagram. to find out more information about items, some have more details available when you click on them. drag and drop each item onto the proper area of the diagram. if an item describes more than one category, be sure to place it in the overlapping space. viruses are tiny infectious pathogens that cause many different diseases, such as polio, and the flu. though they are similar to one celled organisms in some ways, in many ways they are very different. use the venn diagram below to show the similarities and differences between viruses and living organisms.