Logical Reasoning

PT15 · S2 · Q22 A scientist made three observations

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A scientist made three observations: (1) in the world’s temperate zones, food is more plentiful in the ocean than it is in fresh water; (2) migratory fish in temperate zones generally mature in the ocean and spawn in fresh water; and (3) migratory fish need much nourishment as they mature but little or none during the part of their lives when they spawn.

Your task

Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.

Common trap

Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.

Winning move

Predict what a right answer must do, then test each choice against the conclusion-evidence gap.

22.

Which one of the following would it be most helpful to know in order to judge whether what the scientist subsequently learned calls into question the hypothesis?

  1. whether in the world’s temperate

    Trap

    1% picked this

  2. whether the types of foods

    Trap

    10% picked this

  3. whether any species of fish

    Trap

    4% picked this

  4. whether there are more species

    Trap

    2% picked this

  5. Correct

    whether in the tropics food

    Why this is right

    Answer E is correct.

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

    83% picked this

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