A4.1 Evolution and speciation

A4.1 Evolution and speciation Quiz

IB Biology SL: Quiz

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5 questions, one answer each

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  1. 1. Which is an example of evolution?

    • A. A bodybuilder's larger muscles
    • B. An increase in the frequency of an allele for pesticide resistance in a population of insects
    • C. A tree growing taller in sunlight
    • D. A plant losing its leaves in autumn
  2. 2. The wings of a butterfly and a bird are:

    • A. Homologous structures
    • B. Analogous structures
    • C. Pentadactyl limbs
    • D. Evidence of a recent common ancestor
  3. 3. Which species pair shows the fewest amino acid differences in a protein?

    • A. The pair with the most recent common ancestor
    • B. The pair with the most distant common ancestor
    • C. Any two species living in the same habitat
    • D. Two species with the same diet
  4. 4. Gradual change in one species over time, without splitting, is:

    • A. Speciation
    • B. Evolution but not speciation
    • C. Extinction
    • D. Convergent evolution
  5. 5. What role did the Congo River play in the divergence of bonobos and chimpanzees?

    • A. It caused mutations
    • B. It was a geographical barrier that prevented interbreeding
    • C. It provided identical environments on both sides
    • D. It made the apes learn to swim

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