Logical ReasoningDifficulty: Easy

PT15 S2 Q22 Explanation

A scientist made three observations:

A free, expert breakdown of this official LSAT Logical Reasoning question.

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Stimulus

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 that in the tropics migratory fish generally mature in fresh water and spawn in the ocean.

What this question is testing

Evaluate

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.

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The question
22.

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

Answer choices

  1. Trap1% picked this

    whether in the world’s temperate zones, the temperatures of bodies of fresh water tend to be lower than those of the regions of

  2. Trap10% picked this

    whether the types of foods that migratory fish eat while they inhabit the ocean are similar to those that they eat while

  3. Trap4% picked this

    whether any species of fish with populations in temperate zones also have populations that live

  4. Trap2% picked this

    whether there are more species of migratory fish in the tropics than there are

  5. Correct83% picked this

    whether in the tropics food is less plentiful in the ocean than

    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.

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