Logical Reasoning

PT156 · S2 · Q2 Body temperature can be estimated

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Body temperature can be estimated by the relative proportion of two oxygen isotopes in bone.

Your task

Find the choice that makes the argument's conclusion less likely to be true.

Common trap

Answers that look negative but attack a claim the argument never relied on.

Winning move

Find the assumption the argument depends on, then pick the choice that undermines it.

2.

Which one of the following, if true, most seriously weakens the argument?

  1. Large warm-blooded animals keep their

    No Impact: slightly

    Too Narrow: Large

    9% picked this

  2. Correct

    The fossilization process introduces changes

    Why this is right

    Answer B is correct.

    Skill tested: Weaken · how this choice captures the argument's function is the move to repeat next time.

    86% picked this

  3. Oxygen was more abundant in

    Trap

    Irrelevant Comparison: atmospheric oygen then vs. now

    2% picked this

  4. Small warm-blooded animals like mice

    Trap

    Irrelevant Comparison: small vs. large warmblooded animals

    3% picked this

  5. Warm-blooded animals are more active

    Trap

    Irrelevant Comparison: activity and oxygen use in warm vs. cold blooded animals

    0% picked this

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