LSAT Explanation PT 44, S2, Q6: Chai: The use of the word
LSAT Question Stem
The conversation provides the strongest grounds for holding that Chai and Dodd disagree over whether
Logical Reasoning Question Type
This is a Disagree question.
Correct Answer
The correct answer to this question is B.
LSAT Question Complete Explanation
The question type for this problem is Point at Issue or Disagree, as we are asked to identify the point on which Chai and Dodd disagree.
Let's first summarize and analyze the argument in the passage. Chai argues that using the term "tree" for both deciduous and coniferous plants is scientifically inadequate because they have different lineages. This statement is a premise. Dodd, on the other hand, argues that the term "tree" is acceptable because it highlights the fact that both plant types have similar structures and are composed of the same material. This statement is also a premise. The disagreement between Chai and Dodd forms the conclusion of the argument.
Now, let's discuss each answer choice in detail:
Answer choice (a): Chai and Dodd's conversation does not address the general advisability of using ordinary terms as names for biological forms in scientific discourse. They are specifically discussing the term "tree" in this context. Therefore, this answer choice is incorrect.
Answer choice (b): This is the correct answer choice. Chai argues that using the same term for two biological forms with different lineages is scientifically unacceptable, while Dodd argues that it can be acceptable due to their structural similarities. They disagree on this issue.
Answer choice (c): The passage does not provide enough information to determine Chai and Dodd's views on the evolution of deciduous and coniferous plant forms from simpler biological forms. Therefore, this answer choice is incorrect.
Answer choice (d): Neither Chai nor Dodd expresses concern about the importance of lay terms for plant forms reflecting current scientific theories. Their disagreement is about the scientific adequacy of the term "tree." Thus, this answer choice is incorrect.
Answer choice (e): Both Chai and Dodd would likely agree with this statement, as Chai accepts Dodd's assertion that deciduous and coniferous plants have similar structures despite their different lineages. Even if Chai did not accept this similarity, he might still agree with the general assertion. Therefore, this answer choice is incorrect.
In conclusion, the correct answer choice is (b), as Chai and Dodd disagree over whether using the same term for two biological forms with different lineages can be scientifically acceptable.