Cp Biology 2 Final Exam Part D

20 Questions | Total Attempts: 80

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Cp Biology 2 Final Exam Part D

Questions and Answers
  • 1. 
    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

  • 2. 
    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

  • 3. 
    When an individual ___ from its population, the genetic diversity of the population decreases.
    • A. 

      Emigrates

    • B. 

      Immigrates

    • C. 

      Isolates

    • D. 

      Mutates

  • 4. 
    ___ 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

  • 5. 
    The process by which new species arise from prior species is known as ___.
    • A. 

      Divine creation

    • B. 

      Genetic anomaly

    • C. 

      Speciation

    • D. 

      Bottleneck effect

  • 6. 
    A ___ is a group of individuals of the same species in the same geographic area.
    • A. 

      Species

    • B. 

      Population

    • C. 

      Breeding family

    • D. 

      Community

  • 7. 
    The process by which individuals that are better suited to their environment survive and reproduce more successfully than others is known as ___.
    • A. 

      Natural selection

    • B. 

      Sexual selection

    • C. 

      Genetic drift

    • D. 

      Gene flow

  • 8. 
    ___ is a form of reproductive isolation in which two populations reproduce during different times of the year.
    • A. 

      Temporal isolation

    • B. 

      Behavioral isolation

    • C. 

      Geographic isolation

    • D. 

      Mutagenic isolation

  • 9. 
    Scientists attemp to date fossils by examining the radioactive isotopes. This method is called ___.
    • A. 

      Radiometric dating

    • B. 

      Relative dating

    • C. 

      Speed dating

    • D. 

      Geologic time scaling

  • 10. 
    A population that is not undergoing natural selection displays what type of distribution?
    • A. 

      Disruptive

    • B. 

      Directional

    • C. 

      Stabilizing

    • D. 

      Normal

  • 11. 
    In natural selection, the selective agent is ___.
    • A. 

      The environment

    • B. 

      A breeder

    • C. 

      Mutation

    • D. 

      A virus

  • 12. 
    Which term means the crossing of two different species that share common genes?
    • A. 

      Hybridization

    • B. 

      Mutation

    • C. 

      Natural selection

    • D. 

      Sexual selection

  • 13. 
    Genetic variation can arise from a random change in the DNA of a gene. This change is called a(n) ___.
    • A. 

      Mutation

    • B. 

      Gene flow

    • C. 

      Gene pool

    • D. 

      Allele

  • 14. 
    The development by scientists of a new color in a rose is the result of
    • A. 

      Artificial selection

    • B. 

      Natural selection

    • C. 

      Descent with modification

    • D. 

      Overproduction

  • 15. 
    A measure of how commonly a particular allele occurs in a population is known as the ___.
    • A. 

      Gene pool

    • B. 

      Allele frequency

    • C. 

      Mutation rate

    • D. 

      Phenotype

  • 16. 
    Two organisms that are closeley related would have ___.
    • A. 

      Very similar DNA sequences

    • B. 

      Exactly the same DNA sequences

    • C. 

      No proteins in common

    • D. 

      Completely different DNA sequences

  • 17. 
    Approximately how long has Homo sapiens been on Earth?
    • A. 

      2000 years

    • B. 

      200,000 years

    • C. 

      6000 years

    • D. 

      6 million years

  • 18. 
    In the following scientific name, which word indicates the species of the organism? Panthera tigris
    • A. 

      Panthera

    • B. 

      Tigris

    • C. 

      Both words

    • D. 

      Neither word

  • 19. 
    If two organisms belong to the same order, what other taxonomic group must they have in common?
    • A. 

      Species

    • B. 

      Genus

    • C. 

      Phylum

    • D. 

      Family

  • 20. 
    A temporary extension of cytoplasm a nd plasma membrane that helps an amoeba move is called a(n) ___.
    • A. 

      Flagellum

    • B. 

      Cilia

    • C. 

      Pseudopod

    • D. 

      Oral groove

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