Strengthen

Match each logical argument (left) with the specific piece of evidence (right) that most powerfully strengthens its conclusion by resolving its core structural vulnerability.

Match each logical argument with the specific piece of additional evidence that would most strongly support its conclusion by addressing its underlying logical vulnerability.

Ornithologist: In the past few decades, populations of the crested scrub-jay living in urban areas have developed significantly shorter beaks than those living in surrounding rural woodlands. This morphological change is an evolutionary adaptation. Shorter beaks are better suited for scavenging human food scraps from flat surfaces, which are abundant in urban areas, whereas the longer beaks of rural jays are necessary for extracting insects from deep crevices in tree bark.

Which of the following statements, if true, strengthen the ornithologist's argument? (Select all that apply.)

Botanist: The rare Moonflower typically blooms only when exposed to a specific ultrasonic frequency produced by the wings of the Silver Moth. However, a thriving population of blooming Moonflowers was recently discovered on a remote island where Silver Moths are completely absent. Clearly, another species of insect on this island must produce this same ultrasonic frequency, thereby triggering the flowers to bloom.

Which of the following, if true, most strengthens the botanist's argument?

Evaluate the flawed causal claims, predictions, and historical hypotheses presented below. Which specific piece of new evidence provides the most robust logical support for each argument's main conclusion? Match each argument (left) to its strongest supporting evidence (right).

Agricultural Economist: In 2024, the nation of Oakhaven banned the import of proprietary autonomous agricultural drones, prompting domestic farmers to adopt locally manufactured, open-source drones instead. Over the subsequent two years, agricultural yields in Oakhaven increased by 15%, and the average annual cost of farm maintenance dropped substantially. Clearly, the shift to open-source, locally manufactured drones is more efficient for Oakhaven's agricultural sector than relying on imported proprietary models.

Which of the following statements, if true, independently strengthen the economist's argument? (Select all that apply.)

Public Health Official: Over the last decade, the municipality of Veridia has seen a 25 percent increase in residents diagnosed with chronic insomnia. During this same period, surveys indicate that the average daily screen time for adults in Veridia rose by over 30 percent. Because no other major public health trends were identified, this surge in screen time must be the primary factor driving the rise in chronic insomnia.

Which of the following, if true, most strengthen the official's argument? (Select all that apply)

Consumer Psychologist: A recent study of a large online retailer compared two groups of customers: those who manually selected individual items for a monthly delivery and those who paid a 15 percent premium for a "curated" box, where the retailer selected items on their behalf from the same inventory. The customers receiving the curated boxes reported significantly higher overall satisfaction with their purchases. Clearly, the psychological relief of avoiding decision fatigue—the mental exhaustion that comes from making numerous choices—is the primary reason for this higher satisfaction.

Which one of the following, if true, most strengthens the consumer psychologist's argument?

Review the following four scenarios, each presenting a distinct claim based on specific premises. Pair each scenario with the corresponding statement that most effectively bridges its logical gap and reinforces the drawn conclusion.