Quiz: 4b - Mechanisms Of Evolution

20 Questions

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Quiz: 4b - Mechanisms Of Evolution

Questions and Answers
  • 1. 
    What is the term for a feature that allows an organism to survive better in its environment?
    • A. 

      Variation

    • B. 

      Adaptation

    • C. 

      Vestigial structure

    • D. 

      Allele

  • 2. 
    What type of selection occurs when individuals in a population with the intermediate phenotype are selected for?
    • A. 

      Directional selection

    • B. 

      Stabilizing selection

    • C. 

      Intermediate selection

    • D. 

      Disruptive selection

  • 3. 
    The combined alleles of all the individuals in a population is called the ___.
    • A. 

      Allele frequency

    • B. 

      Gene pool

    • C. 

      Adaptation

    • D. 

      Phenotype frequency

  • 4. 
    Which effect of natural selection is depicted in the graph?
    • A. 

      Directional selection

    • B. 

      Disruptive selection

    • C. 

      Stabilizing selection

    • D. 

      Sexual selection

  • 5. 
    Which effect of natural selection is depicted in the graph?
    • A. 

      Directional selection

    • B. 

      Disruptive selection

    • C. 

      Stabilizing selection

    • D. 

      Sexual selection

  • 6. 
    Which effect of natural selection is depicted in the graph?
    • A. 

      Directional selection

    • B. 

      Disruptive selection

    • C. 

      Stabilizing selection

    • D. 

      Sexual selection

  • 7. 
    When a few individuals start a new colony, it most likely results in ...
    • A. 

      Genetic drift through the founder effect.

    • B. 

      More variety in the new population.

    • C. 

      Extinction due to the bottleneck effect.

    • D. 

      Mutation due to disruptive selection.

  • 8. 
    The movement of alleles from one population to another is called ___.
    • A. 

      The founder effect

    • B. 

      Microevolution

    • C. 

      Genetic drift

    • D. 

      Gene flow

  • 9. 
    Which of the following is not a mechanism for evolution?
    • A. 

      Natural selection

    • B. 

      Sexual selection

    • C. 

      Genetic drift

    • D. 

      Random mating

  • 10. 
    Which of the five mechanisms of evolution is illustrated in the following scenario: A change in body color enabled animals to better hide from predators.
    • A. 

      Natural selection

    • B. 

      Gene flow

    • C. 

      Genetic drift

    • D. 

      Mutation

  • 11. 
    When bull elephants charge each other and but heads, they are exhibiting ____ behavior.
    • A. 

      Intrasexual selection

    • B. 

      Intersexual selection

    • C. 

      Isolation

    • D. 

      Natural selection

  • 12. 
    When a male bird of paradise displays its tail feathers, it is exhibiting ____ behavior.
    • A. 

      Intrasexual selection

    • B. 

      Intersexual selection

    • C. 

      Isolation

    • D. 

      Natural selection

  • 13. 
    When an individual ___ from its population, the genetic diversity of the population decreases.
    • A. 

      Emigrates

    • B. 

      Immigrates

    • C. 

      Isolates

    • D. 

      Mutates

  • 14. 
    When an individual ___ into a new population, the genetic diversity of this new population increases.
    • A. 

      Emigrates

    • B. 

      Immigrates

    • C. 

      Isolates

    • D. 

      Mutates

  • 15. 
    Which of the following is not a condition for Hardy-Weinberg equilibrium?
    • A. 

      No natural selection

    • B. 

      No sexual selection

    • C. 

      No mutation

    • D. 

      No genetic drift

    • E. 

      No gene flow

    • F. 

      No overproduction

  • 16. 
    ___ is a type of reproductive isolation in which oceans, mountains, or deserts keep populations from interbreeding.
    • A. 

      Geographic isolation

    • B. 

      Behavioral isolation

    • C. 

      Temporal isolation

    • D. 

      Intersexual isolation

  • 17. 
    ___ is a type of reproductive isolation in which differing mating rituals prevent individuals from different populations from mating.
    • A. 

      Geographic isolation

    • B. 

      Behavioral isolation

    • C. 

      Temporal isolation

    • D. 

      Intersexual isolation

  • 18. 
    ___ is a process by which unrelated organisms independantly evolve similar features in response to changes in the environment.
    • A. 

      Coevolution

    • B. 

      Convergent evolution

    • C. 

      Divergent evolution

    • D. 

      Deevolution

  • 19. 
    ___ is a type of evolution in which organisms change in response to other organisms with which they have ecological relationships.
    • A. 

      Coevolution

    • B. 

      Convergent evolution

    • C. 

      Divergent evolution

    • D. 

      Deevolution

  • 20. 
    The process by which new species arise from prior species is known as ___.
    • A. 

      Speciation

    • B. 

      Genetic anomaly

    • C. 

      Divine creation

    • D. 

      Bottleneck effect