mdcat logical reasoning MCQ #557

A region's fish population declines after a dam is built. What ecological process is primarily responsible?

mdcat logical reasoning MCQ #557

  1. Question 1

    Q1. A region's fish population declines after a dam is built. What ecological process is primarily responsible?

    • A) Fragmented habitats disrupting migration patterns
    • B) Reduced oxygen levels in stagnant reservoirs
    • C) Sediment buildup smothering spawning grounds
    • D) Altered water temperature gradients

    Answer: Fragmented habitats disrupting migration patterns

    Explanation: Dams block migratory routes for spawning. Fragmented habitats disrupting migration patterns is correct because it matches what the question requires. USAT, HAT and MDCAT analytical sections repeat this pattern.