Logical Reasoning

PT159 · S3 · Q6 A tiny crab that lives 550 meters below the surface

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A tiny crab that lives 550 meters below the surface of the Gulf of Mexico has been found to have eyes that are sensitive to ultraviolet light.

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.

6.

Which one of the following, if true, would most weaken the argument?

  1. A trait that serves no

    Trap

    2% picked this

  2. Prey is not plentiful at

    Trap

    17% picked this

  3. The crabs can detect each

    Trap

    2% picked this

  4. It takes many generations to

    Trap

    1% picked this

  5. Correct

    The crab's most dangerous predators

    Why this is right

    Answer E is correct.

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

    78% picked this

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