A3.1 Diversity of organisms

A3.1 Diversity of organisms Quiz

IB Biology HL: Quiz

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5 questions, one answer each

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  1. 1. Two populations meet and produce offspring that are always sterile. Under the biological species concept they are:

    • A. One species
    • B. Separate species
    • C. The same genus only
    • D. Subspecies

  2. 2. SNPs create diversity within a species by changing:

    • A. Chromosome number
    • B. Genome size
    • C. Number of genes
    • D. Single bases in the sequence

  3. 3. HL: Horizontal gene transfer makes the biological species concept hard to apply to:

    • A. Mammals
    • B. Bacteria
    • C. Flowering plants
    • D. Birds

  4. 4. HL: A dichotomous key for 10 species has how many couplets?

    • A. 9
    • B. 5
    • C. 10
    • D. 20

  5. 5. HL: eDNA barcoding compares sequences with:

    • A. A karyogram
    • B. A dichotomous key
    • C. A light micrograph
    • D. A reference database

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