3.1 Biodiversity and evolution

3.1 Biodiversity and evolution Quiz

IB Environmental Systems and Societies HL: Quiz

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5 questions, one answer each

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  1. 1. [HL] Which adds new alleles to a population?

    • A. Sexual reproduction
    • B. Mutation
    • C. Artificial selection
    • D. Overproduction

  2. 2. [HL] Two populations on the same lake use different depths and do not mix. This is reproductive isolation by:

    • A. Geographical separation
    • B. Ecological difference
    • C. Behavioural difference only
    • D. Mutation

  3. 3. Two sites have equal richness. Site 1 has D = 6.1 and Site 2 has D = 1.4. Site 2 is:

    • A. More even
    • B. Dominated by one or a few species
    • C. Richer
    • D. More resilient

  4. 4. [HL] Biodiversity hotspots show that:

    • A. Biodiversity is spread evenly
    • B. Biodiversity is spread unevenly
    • C. Hotspots have low endemism
    • D. Only oceans have hotspots

  5. 5. [HL] Rapid speciation after a mass extinction is mainly because:

    • A. Mutation rates fall
    • B. Niches become available
    • C. Competition increases
    • D. Artificial selection begins

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