LSAT 156 | Section 2 | Logical Reasoning: Q7

LR Question 7 Explanation

QUESTION TEXT: Mr Xu: The arctic squirrel gets so cold while …

QUESTION TYPE: Method of Reasoning

ARGUMENTS: XU’S ARGUMENT: The squirrel’s blood doesn’t freeze even below water’s freezing point, so it must contain a substance that prevents freezing.

YERKY’S ARGUMENT: There’s no such substance. Experiments show that the blood freezes at the same temperature as water.

ANALYSIS: Yerky’s argument directly conflicts with Mr. Xu’s conclusion. If the blood really had a special anti-freezing substance, you wouldn’t expect it to freeze like normal water in experiments.

___________

1. CORRECT. She presents evidence (lab results) that contradicts Xu’s conclusion.
2. She doesn’t question Xu’s methods.
3. She doesn’t give a different reason for why the blood doesn’t freeze. She says the blood does freeze.
4. There’s no discussion about an ambiguous term.
5. This would be the case if she said Xu’s evidence is irrelevant, but she didn’t do that.