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121. No student at Pinewoods High takes both biology and chemistry at the same time. Ramona and Quinn are both students at Pinewoods and neither takes biology, so they must both be enrolled in chemistry.
Which one of the following arguments displays a flawed pattern of reasoning most similar to that in the argument above?
122. Banning DDT was the correct decision, because DDT not only killed unwanted pests such as mosquitoes, but also killed or made infertile many desirable animals, such as bald eagles. For this reason alone the ban on DDT should be continued. In the decades since DDT has been banned, the bald eagle population has stabilized.
Which of the following most accurately expresses the argument’s main conclusion?
123. Researchers have established that diets rich in lean poultry, fish, legumes, and fresh fruits and vegetables are the healthiest. However, on average, people who follow such a diet generally have more serious health problems, such as diabetes and heart disease, than does the general population.
Which one of the following, if true, most helps resolve the apparent paradox above?
124. A theoretical framework assists academics in organizing their thoughts and making them relatable to an educated but diverse audience. However, many political scientists argue that theoretical frameworks have a Western bias, and are not appropriate for many sub fields, including comparative politics. Therefore, _________________________________.
Which of the following most logically completes the argument?
125. Therapist: “People suffering from Post Traumatic Stress Disorder, or PTSD, often struggle with social anxiety. PTSD symptoms are especially severe for people who already struggled with anxiety prior to developing PTSD. PTSD is common in military veterans, so it is important for the military to test people for anxiety disorders before they join in order to prevent people who will be more heavily impacted by PTSD from suffering its consequences.”
Which one of the following principles, if valid, most helps justify the conclusion of the argument?