mdcat logical reasoning MCQ #492

A population of beetles shows increased resistance to pesticides over generations. What evolutionary mechanism explains this?

mdcat logical reasoning MCQ #492

  1. Question 1

    Q1. A population of beetles shows increased resistance to pesticides over generations. What evolutionary mechanism explains this?

    • A) Natural selection acting on random mutations
    • B) Increased food availability
    • C) Chemical adaptation through learning
    • D) Symbiotic relationships with fungi

    Answer: Natural selection acting on random mutations

    Explanation: Selection pressure favors resistant alleles. Natural selection acting on random mutations is correct because it matches what the question requires. USAT, HAT and MDCAT analytical sections repeat this pattern.