Bio Test 3 (part 3)

11 Questions  I  By Ohchimonkey
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Biology Quizzes & Trivia
Bio test part 3 of 5. 55 question test.

  
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  • 1. 
    Which of the following evolve?
    • A. 

      Populations

    • B. 

      Genera

    • C. 

      Kingdoms

    • D. 

      Both populations and genera

    • E. 

      Populations, genera, and kingdoms


  • 2. 
    The bones in the forelimbs of a mammal
    • A. 

      Can often be traced to a common ancestor.

    • B. 

      Offer no evidence to support the theory of evolution.

    • C. 

      Perform the same function no matter which species they are in.

    • D. 

      May exhibit either analogy or homology but not both when compared to the forelimb of another animal.

    • E. 

      Show convergence with some invertebrate structures.


  • 3. 
    The wings of a bird and the wings of a butterfly are ____ and show morphological ____.
    • A. 

      Homologous; convergence

    • B. 

      Analogous; convergence

    • C. 

      Homologous; divergence

    • D. 

      Analogous; divergence

    • E. 

      Homologous; preservation


  • 4. 
    The plant species below closely resemble each other but are not closely related. They are native to different continents. What factor explains why they are so much alike?
    • A. 

      Morphological convergence

    • B. 

      Continental drift

    • C. 

      Similar ecological requirements

    • D. 

      Natural selection

    • E. 

      All except continental drift


  • 5. 
    The Hardy-Weinberg formula is valuable for the calculation of changes in
    • A. 

      Population size.

    • B. 

      Speciation.

    • C. 

      Allele frequencies.

    • D. 

      Mutation.

    • E. 

      Dimorphism.


  • 6. 
    The Hardy-Weinberg rule is
    • A. 

      Useful in determining the extent to which a sexually reproducing population is evolving.

    • B. 

      Used to predict when genetic drift will occur in a sexually reproducing population.

    • C. 

      Useful in determining the extent to which polyploidy is occuring in specific plant populations.

    • D. 

      Used to predict when specific groups of organisms will become extinct.

    • E. 

      All of these


  • 7. 
    If the frequency of expression of a recessive trait in a population is 16 percent, the frequency of the recessive allele is what percent?
    • A. 

      16

    • B. 

      25

    • C. 

      40

    • D. 

      50

    • E. 

      67


  • 8. 
    Of 400 people who dwell on a Pacific island, 16 are homozygous recessive for a trait that has only two different types of alleles in the population. The number of heterozygous people is
    • A. 

      256.

    • B. 

      32.

    • C. 

      64.

    • D. 

      128.

    • E. 

      384.


  • 9. 
    Which graphic in this illustration depicts the results of stabilizing selection?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      B and C

    • E. 

      None of these


  • 10. 
    Directional selection occurs when
    • A. 

      The environment controls which organisms will survive.

    • B. 

      Humans determine which organisms will survive.

    • C. 

      The extremes of the population have a lesser chance to survive.

    • D. 

      The extremes of the population have a better chance to survive.

    • E. 

      The organisms on one extreme of the population have a better chance to survive than those on the other extreme.


  • 11. 
    In the text example, the change in moth populations from predominantly light- to dark-winged forms was the result of
    • A. 

      Environmental changes.

    • B. 

      Natural selection.

    • C. 

      Food choices by predators.

    • D. 

      The ability of birds to find the prey.

    • E. 

      All of these.


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