MDCAT Biology MCQ #3589

A population of birds living on an isolated island has a unique beak shape. What drives the evolution of this trait?

MDCAT Biology MCQ #3589

  1. Question 1

    Q1. A population of birds living on an isolated island has a unique beak shape. What drives the evolution of this trait?

    • A) Genetic drift
    • B) Natural selection
    • C) Mutation
    • D) Gene flow

    Answer: Natural selection

    Explanation: Natural selection favors unique beak shape, unlike genetic drift which is random.