Necessary AssumptionDiff: Medium
Logic Breakdown
Passage Summary: Reptiles are unable to adapt their behavior to new situations, so they must not be able to think in a complex way.
Conclusion: Reptiles are not capable of complex reasoning.
Reasoning: Reptiles do not significantly change their behavior even when their environment undergoes major changes.
Analysis: The herpetologist is assuming a direct link between behavioral flexibility and intellectual capacity. Specifically, the argument relies on the idea that if an animal *could* reason complexly, it *would* be able to change its behavior when the environment shifts. To test this as a necessary assumption, negate it: if complex reasoning did not require the ability to alter behavior, then the reptiles' rigid behavior wouldn't prove they lack reasoning. Look for an answer that connects the ability to adapt behavior to the presence of complex reasoning.
Conclusion: Reptiles are not capable of complex reasoning.
Reasoning: Reptiles do not significantly change their behavior even when their environment undergoes major changes.
Analysis: The herpetologist is assuming a direct link between behavioral flexibility and intellectual capacity. Specifically, the argument relies on the idea that if an animal *could* reason complexly, it *would* be able to change its behavior when the environment shifts. To test this as a necessary assumption, negate it: if complex reasoning did not require the ability to alter behavior, then the reptiles' rigid behavior wouldn't prove they lack reasoning. Look for an answer that connects the ability to adapt behavior to the presence of complex reasoning.
Passage Stimulus
Passage Redacted
Unlock Full Passage16.Which one of the following is an assumption required by the herpetologist's argument?
Correct Answer
D
D states the needed link: if reptiles had complex reasoning, they would sometimes be able to make major behavioral changes. Negation test: If even reasoning-capable reptiles would never be able to make major changes, then the experiment’s result (no major changes) would not indicate lack of reasoning, collapsing the argument.
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