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#816-REV-U8: Practice Test

Quiz by Tiffany Owens

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10 questions
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  • Q1
    Within a decade of the introduction of a new insecticide, nearly all of the descendants of the target pest were immune to the usual-sized dose. The most likely explanation for this is that:
    The insectivide cuased mutations in the insects that allowed some of them to become resistant
    Some of the insects had a natural resistance that they passed on
    Eating the insecticide caused the insects to become more resistant to it
    It kills organisms that cause disease in the insects, allowing them to live longer
  • Q2
    Which statement does individual variation help explain?
    Resources become limited over long periods of time
    Populations often increase rapidly and without warning
    Competition is fierce between members of different species
    Some organisms survive and reproduce better than others
  • Q3
    Natural selection can best be defined as the:
    The smartest are selected for
    Elimination of the smallest organisms by the largest ones
    Survival of the biggest and strongest organisms in a population
    Survival and reproduction of the organisms that are genetically best adapted
  • Q4
    Which of the following describes how speciation may occur in populations that are separated for a long period of time?
    Evolution works differently in different species
    Different mutations build up in the different populations
    Interbreeding with other species
    Convergent evolution
  • Q5
    A lack of resources and a growing population are most likely to result in:
    Protective coloration
    Vestigial organs
    Convergent evolution
  • Q6
    Cougars are predators that often eat weakened or diseased animals. This is a description of the ___________ of cougars.
    Biotic Factor
  • Q7
    Cauliflower, cabbage, broccoli, and kale have a close evolutionary relationship. Which is the best evidence for this relationship?
    Percentage of identical DNA sequences
    Ability to do photosynthesis
    Similar growth seasons
    Live in similar habitats
  • Q8
    The similarity of the structures above suggests that the organisms:
    Question Image
    Have a common ancestor
    Evolved slowly
    All grow at different rate
    Live for a long time
  • Q9
    How are estivation and hibernation adaptations?
    They are behaviors and not adaptations to anything
    They both help organisms to survive conditions of limited resources
    They both help organisms survive cold weather
    They help organisms find mates
  • Q10
    A contractile vacuole is most likely to be found in what type of organism?
    A freshwater cell
    A saltwater cell
    Cells don't have contractile vacuoles
    They are equally likely

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