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Biology: Evolution Unit Review

12 Questions
Biology: Evolution Unit Review

This quiz will help you prepare for the unit test on evolution.

Questions and Answers
  • 1. 
    The flounder has developed a flat sandy-colored body that allows it to lie on the ocean floor where it cannot be seen by predators or prey. The flounder's phenotype is an example of _________________.
    • A. 

      Genetic engineering

    • B. 

      An adaptation

    • C. 

      Succession

    • D. 

      A clone

  • 2. 
    Salamanders with longer tongues tend to live more years than those with short tongues. Long tongues probably enable the salamander to catch more food. This is an example of Darwin's concept of __________.
    • A. 

      Survival of the fittest

    • B. 

      Evolution of crossing over

    • C. 

      The tree of life

  • 3. 
    Which of the statements about evolution is NOT true?
    • A. 

      Evolution is the slow change in a species over a long period of time.

    • B. 

      Evolution occurs within individual organisms due to environmental pressures.

    • C. 

      Evidence of evolution can be seen in the fossil record.

  • 4. 
    Look at the picture of the cats below: The difference in the color of cats is known as ______.
    • A. 

      Evolution

    • B. 

      Adaptation

    • C. 

      Variation

  • 5. 
    The polar bear's thick fur and layer of fat are examples of ______________ that enable it to survive in an extrememely cold environment.
    • A. 

      Relationships

    • B. 

      Adaptations

    • C. 

      Alterations

    • D. 

      Replications

  • 6. 
    The change in the color of the peppered moth in England during the Industrial Revolution was the result of a process called _______________.
    • A. 

      Succesion

    • B. 

      DNA translation

    • C. 

      Selective breeding

    • D. 

      Natural selection

  • 7. 
    Ms. Puckett uses an ant spray to kill the ants in her house. Over several months, she notices that fewer and fewer ants are dying and more are living. This is happening because of what process?
    • A. 

      Crossing over

    • B. 

      Natural selection

    • C. 

      Mitosis

  • 8. 
    In order for evolution to take place, which of the following must be true:
    • A. 

      Each organism must produce offspring that are genetically identical to the parent.

    • B. 

      The environment must be unchanging for at least a million years.

    • C. 

      Mutations must create variations in traits.

  • 9. 
    One of the birds found on the Galapagos Islands is the medium ground finch. These birds prefer to eat small seeds, which are easier to eat than large seeds. However, when food is scarce, such as during a drought, some of the birds can eat larger seeds. The ability to crush and eat larger seeds is related to beak thickness, an inherited characteristic. Birds with thicker beaks are able to crush large seeds more easily. Which of the following would we be likely to see during times of drought?
    • A. 

      An increase in the number of finches with thicker beaks.

    • B. 

      A decrease in the number of finches with thicker beaks.

    • C. 

      An increase in the finch population.

    • D. 

      An increase in the number of plants with seeds.

  • 10. 
    Why do all mammals have hair on their bodies?
    • A. 

      Cold temperatures made them all grow hair.

    • B. 

      Each of them decided that hair would look good.

    • C. 

      As each kind of mammal evolved, it independently developed hair.

    • D. 

      They all have a common ancestor which also had hair.

  • 11. 
    Scientists can compare DNA sequences of different species of animals. The species that are most closely related will
    • A. 

      Have the greatest number of similar sequences

    • B. 

      Have the fewest similar sequences

    • C. 

      Start and end with the same base pairs

    • D. 

      Have the greatest number of different base pair sequences.

  • 12. 
    An area where a population of wolves lives is getting colder. Even though the wolves do not have predators, they often die as a result of the cold temperatures. In this climate, natural selection should favor individuals that possess which of the following?
    • A. 

      White fur

    • B. 

      Thicker fur

    • C. 

      Sharp claws

    • D. 

      Blue eyes