AP Biology Ecology Quiz 1

21 Questions | Total Attempts: 224

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AP Biology Ecology Quiz 1

This quiz will test your knowledge of chapters 50-53.


Questions and Answers
  • 1. 
    Discuss the flow of energy through a food web.  Include the recycling of energy. (20 points)
  • 2. 
    In an energy pyramid, how much energy is transferred from one level to the next as you move from the bottom of the pyramid to the top?
    • A. 

      All of it

    • B. 

      10%

    • C. 

      50%

    • D. 

      90%

  • 3. 
    Which statement about dispersal is false?
    • A. 

      Dispersal is a common component of the life cycles of plants and animals.

    • B. 

      Colonization of devastated areas after floods or volcanic eruptions depends on dispersal.

    • C. 

      Dispersal occurs only on an evolutionary time scale.

    • D. 

      Seeds are important dispersal stages in the life cycles of most flowering plants.

  • 4. 
    Which of the following statements provides an ultimate explanation for the observation that adult salmon return from the ocean to spawn in the stream in which they hatched?
    • A. 

      Young salmon imprint on the chemical scent of their home stream.

    • B. 

      Adult salmon use stellar navigation to relocate their home stream.

    • C. 

      Spawning in the home stream results in higher survival of young salmon.

    • D. 

      Oceanic currents aid salmon in their search for their home stream.

  • 5. 
    Pavlov's dogs learned to associate hearing a bell with food.  Simply hearing a bell caused them to salivate.  This is an example of
    • A. 

      Habituation

    • B. 

      Operant conditioning

    • C. 

      Classical conditioning

    • D. 

      Imprinting

  • 6. 
    A sign stimulus that functions as a signal to trigger a certain behavior in another member of the same species is called
    • A. 

      A ritual

    • B. 

      A fixed action stimulus

    • C. 

      An inducer

    • D. 

      A releaser

  • 7. 
    To begin the mating dance, the male ostrich moves his head in a particular bobbing fashion.  This initiates a specific response from the female, and the ritualized mating dance can begin.  The male head bobbing is
    • A. 

      A ritual

    • B. 

      A fixed action stimulus

    • C. 

      An imprinting stimulus

    • D. 

      A releaser

  • 8. 
    Which of the following is related to altruistic behavior?
    • A. 

      Kin selection

    • B. 

      Fixed action pattern

    • C. 

      A search image

    • D. 

      Imprinting

  • 9. 
    Which of the following is true of innate behaviors?
    • A. 

      Genes have very little influence on the expression of innate behaviors.

    • B. 

      Innate behaviors tend to vary considerably among members of a population.

    • C. 

      Innate behaviors are limited to invertebrate animals.

    • D. 

      Innate behaviors are expressed in most individuals in a population across a wide range of environmental conditions.

  • 10. 
    The observation that members of a population are uniformly distributed suggests that
    • A. 

      The size of the area occupied by the population is increasing.

    • B. 

      Resources are distributed unevenly.

    • C. 

      The members of the population are competing for access to a resource.

    • D. 

      The members of the population are neither attracted to nor repelled by one another.

  • 11. 
    Which pair of terms most accurately describes life-history traits for a stable population of wolves?
    • A. 

      Semelparous; r-selected

    • B. 

      Semelparous; K-selected

    • C. 

      Iteroparous; r-selected

    • D. 

      Iteroparous; K-selected

  • 12. 
    A population's carrying capacity
    • A. 

      Increases as the per capita growth rate (r) decreases

    • B. 

      May change as environmental conditions change

    • C. 

      Can never be exceeded

    • D. 

      Generally remains constant over time

  • 13. 
    Which of these types would indicate a K-strategist?
    • A. 

      Type I (humans)

    • B. 

      Type II (songbirds)

    • C. 

      Type III (frog)

    • D. 

      None of the above

  • 14. 
    Which of these types would indicate a r-strategist?
    • A. 

      Type I (humans)

    • B. 

      Type II (songbirds)

    • C. 

      Type III (frog)

    • D. 

      None of the above

  • 15. 
    The feeding relationships among the species in a community determine the community's
    • A. 

      Secondary succession

    • B. 

      Ecological niche

    • C. 

      Trophic structure

    • D. 

      Species-area curve

  • 16. 
    The competitive exclusion principle states that
    • A. 

      Two species cannot coexist in the same habitat

    • B. 

      Competition between two species always causes extinction or emigration of one species

    • C. 

      Competition in a population promotes survival of the best-adapted individuals

    • D. 

      Two species with the exact same niche cannot coexist in a community

  • 17. 
    Which of the following could qualify as a top-down control on a grassland community?
    • A. 

      Limitation of plant biomass by rainfall amount

    • B. 

      Influence of termperature on competition among plants

    • C. 

      Influence of soil nutrients on the abundance of grasses versus wildflowers

    • D. 

      Effect of grazing intensity by bison on plant species diversity

  • 18. 
    Which of the following best explains why there are usually no more than five trophic levels in a food chain?
    • A. 

      There are not enough organisms to fill more than five levels.

    • B. 

      There is too much competition among the organisms at the lower levels to support more animals at higher levels.

    • C. 

      Energy is lost at each trophic level.

    • D. 

      The statement is not true; there can be unlimited trophic levels.

  • 19. 
    In this depiction of a terrestrial food web, which letter would represent a producer?
    • A. 

      Z

    • B. 

      T

    • C. 

      S

    • D. 

      V

  • 20. 
    In this depiction of a terrestrial food web, which letter would represent the species with the smallest biomass?
    • A. 

      Z

    • B. 

      T

    • C. 

      S

    • D. 

      V

  • 21. 
    Many poisonous animals are brightly colored (red or orange) as a warning to predators.  This special coloration is called
    • A. 

      Mullerian mimicry

    • B. 

      Batesian mimicry

    • C. 

      Aposematic coloration

    • D. 

      Mutualistic coloration

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