3.1 Biodiversity and evolution

3.1 Biodiversity and evolution Quiz

IB Environmental Systems and Societies SL: Quiz

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5 questions, one answer each

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  1. 1. Which term describes the variety of alleles within a species?

    • A. Species diversity
    • B. Habitat diversity
    • C. Genetic diversity
    • D. Evenness

  2. 2. Which is NOT a requirement for natural selection?

    • A. Variation
    • B. Overproduction of offspring
    • C. Competition for limited resources
    • D. Characteristics acquired in life being inherited

  3. 3. A community has counts 5, 5 and 5. What is N(N − 1)?

    • A. 210
    • B. 15
    • C. 105
    • D. 60

  4. 4. Two sites each have 6 species. Site X has a Simpson's index of 5.2 and Site Y 1.8. What explains this?

    • A. Site X has greater richness
    • B. Site X has greater evenness
    • C. Site Y has more individuals
    • D. Site Y has greater genetic diversity

  5. 5. What is speciation?

    • A. The extinction of a species
    • B. The generation of new species through evolution
    • C. The movement of a species to a new habitat
    • D. A rise in genetic diversity within one species

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