5/22/19 Population Studies & Interactions Among Living Things Practice For Proprof End Of Units Test

21 Questions | Total Attempts: 93

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5/22/19 Population Studies & Interactions Among Living Things Practice For Proprof End Of Units Test - Quiz


Questions and Answers
  • 1. 
    The living parts of a habitat are:
    • A. 

      Ecosystem

    • B. 

      Niche

    • C. 

      Abiotic factors

    • D. 

      Population

    • E. 

      Organisms

    • F. 

      Biotic factors

    • G. 

      Ecology

    • H. 

      Habitat

    • I. 

      Ecotone

    • J. 

      Community

    • K. 

      Species

    • L. 

      Photosynthesis

  • 2. 
    An organism that obtains energy by feeding on other organisms is:
    • A. 

      A decomposer.

    • B. 

      A consumer.

    • C. 

      A herbivore.

    • D. 

      A producer.

  • 3. 
    The organism that does the killing of another is the:
    • A. 

      Commensalism

    • B. 

      Parasite/parasitism

    • C. 

      Host

    • D. 

      Competition

    • E. 

      Mutualism

    • F. 

      Niche

    • G. 

      Prey

    • H. 

      Predator

    • I. 

      Adaptations

    • J. 

      Predation

    • K. 

      Symbiosis

    • L. 

      Natural selection

  • 4. 
    The organism that is killed is the:
    • A. 

      Niche

    • B. 

      Prey

    • C. 

      Predator

    • D. 

      Adaptations

    • E. 

      Predation

    • F. 

      Symbiosis

    • G. 

      Natural selection

    • H. 

      Commensalism

    • I. 

      Parasite/parasitism

    • J. 

      Host

    • K. 

      Competition

    • L. 

      Mutualism

  • 5. 
    The role of an organism in its habitat: 
    • A. 

      Niche

    • B. 

      Prey

    • C. 

      Predator

    • D. 

      Adaptations

    • E. 

      Predation

    • F. 

      Symbiosis

    • G. 

      Natural selection

    • H. 

      Commensalism

    • I. 

      Parasite/parasitism

    • J. 

      Host

    • K. 

      Competition

    • L. 

      Mutualism

  • 6. 
    Why are there fewer organisms at the top of the food chain?
    • A. 

      There are usually few organisms at the top because there is a limited amount of energy available at that level of a food web.

    • B. 

      There are usually few organisms at the top because the organisms at the top of the food chain care for their young longer than organisms lower on the food chain.

    • C. 

      There are usually few organisms at the top because the organisms at the top of the food chain consume are omnivores that consume diverse kinds of organisms that are lower on the food chain.

    • D. 

      There are usually few organisms at the top because the organisms at the top of the food chain are scavengers consuming what other organisms have left behind.

  • 7. 
    All of the following are examples of limiting factors for populations except:
    • A. 

      Space

    • B. 

      Food

    • C. 

      Emigration

    • D. 

      Weather

  • 8. 
    An environmental factor that causes a population to decrease is a ____________.
    • A. 

      Direct observation

    • B. 

      Limiting factor

    • C. 

      Birth rate

    • D. 

      Population

    • E. 

      Indirect observation

    • F. 

      Death rate

    • G. 

      Population density

    • H. 

      Carrying capacity

    • I. 

      Estimate

    • J. 

      Emigration

    • K. 

      Ecology

    • L. 

      Mark and recapture

    • M. 

      Immigration

    • N. 

      Space

    • O. 

      Food

    • P. 

      Sample

    • Q. 

      Weather

    • R. 

      Water

  • 9. 
    Changes in population may occur when a group moves into a population. This is called:
    • A. 

      Direct observation

    • B. 

      Limiting factor

    • C. 

      Birth rate

    • D. 

      Population

    • E. 

      Indirect observation

    • F. 

      Death rate

    • G. 

      Population density

    • H. 

      Carrying capacity

    • I. 

      Estimate

    • J. 

      Emigration

    • K. 

      Ecology

    • L. 

      Mark and recapture

    • M. 

      Immigration

    • N. 

      Space

    • O. 

      Food

    • P. 

      Sample

    • Q. 

      Weather

    • R. 

      Water

  • 10. 
    If the death rate in a population is greater than the birth rate:
    • A. 

      The population will generally decrease.

    • B. 

      The population will remain the same.

    • C. 

      The population will increase.

    • D. 

      The birth rate will rise.

  • 11. 
    Identify this method of estimating populations:  Red wolves are tagged, released and checked systematically.
    • A. 

      Direct observation

    • B. 

      Limiting factor

    • C. 

      Birth rate

    • D. 

      Population

    • E. 

      Indirect observation

    • F. 

      Death rate

    • G. 

      Population density

    • H. 

      Carrying capacity

    • I. 

      Estimate

    • J. 

      Emigration

    • K. 

      Ecology

    • L. 

      Mark and recapture

    • M. 

      Immigration

    • N. 

      Space

    • O. 

      Food

    • P. 

      Sample

    • Q. 

      Weather

    • R. 

      Water

  • 12. 
    When might an ecologist use indirect observation to estimate a population?
    • A. 

      Indirect observation may be used when a population is small or difficult to find.

    • B. 

      Indirect observation may be used when a population is located in a remote area that the scientist cannot get to.

    • C. 

      Indirect observation may be used to mark and recapture organisms.

    • D. 

      Indirect observation may be used for sampling.

  • 13. 
    What does the basic formula for mark and recapture mean?
    • A. 

      The population sample equals the number marked multiplied by the sum of the unmarked and recaptured divided by the number recaptured

    • B. 

      The population sample equals the number marked minus the sum of the unmarked and recaptured divided by the number recaptured.

    • C. 

      The population sample equals the number marked divided by the number recaptured

    • D. 

      The population sample equals the number unmarked plus the recaptured divided by the number recaptured

  • 14. 
    One method of estimating population size is to count the number of organisms in a small  _________  area and then apply multiples of that area to the larger area.
    • A. 

      Direct observation

    • B. 

      Limiting factor

    • C. 

      Birth rate

    • D. 

      Population

    • E. 

      Indirect observation

    • F. 

      Death rate

    • G. 

      Population density

    • H. 

      Carrying capacity

    • I. 

      Estimate

    • J. 

      Emigration

    • K. 

      Ecology

    • L. 

      Mark and recapture

    • M. 

      Immigration

    • N. 

      Space

    • O. 

      Food

    • P. 

      Sample

    • Q. 

      Weather

    • R. 

      Water

  • 15. 
    A mouse, raccoon and hawk are all members of the same:
    • A. 

      Species

    • B. 

      Niche

    • C. 

      Community

    • D. 

      Population

  • 16. 
    All of the following are examples of limiting factors except:
    • A. 

      Time

    • B. 

      Food & water

    • C. 

      Space

    • D. 

      Weather

  • 17. 
    What is a sampling estimate?
    • A. 

      A sampling estimate is an approximation of a number based on reasonable assumptions.

    • B. 

      The practice of mark and recapture.

    • C. 

      Uses mathematical formulas to estimate the total population.

    • D. 

      A direct count of the organisms in a population.

  • 18. 
    An environmental factor that causes a population to decrease is a ____________.
    • A. 

      Direct observation

    • B. 

      Limiting factor

    • C. 

      Birth rate

    • D. 

      Population

    • E. 

      Indirect observation

    • F. 

      Death rate

    • G. 

      Population density

    • H. 

      Carrying capacity

    • I. 

      Estimate

    • J. 

      Emigration

    • K. 

      Ecology

    • L. 

      Mark and recapture

    • M. 

      Immigration

    • N. 

      Space

    • O. 

      Food

    • P. 

      Sample

    • Q. 

      Weather

    • R. 

      Water

  • 19. 
    The largest population that an area can support is called:
    • A. 

      Direct observation

    • B. 

      Limiting factor

    • C. 

      Birth rate

    • D. 

      Population

    • E. 

      Indirect observation

    • F. 

      Death rate

    • G. 

      Population density

    • H. 

      Carrying capacity

    • I. 

      Estimate

    • J. 

      Emigration

    • K. 

      Ecology

    • L. 

      Mark and recapture

    • M. 

      Immigration

    • N. 

      Space

    • O. 

      Food

    • P. 

      Sample

    • Q. 

      Weather

    • R. 

      Water

  • 20. 
    Ecologists use the birth and death rates to calculate a population's growth rate, the rate the population is changing. The birth rate (b) minus the death rate (d) equals the growth rate (g). So, B-D=G  Based on this formula: a population of rabbits with an average of 760 births and 227 deaths has a growth rate of _________ per year:
    • A. 

      533 rabbits

    • B. 

      233 rabbits

    • C. 

      227 rabbits

    • D. 

      987 rabbits

  • 21. 
    Use the graph to answer the questions about the changes in squirrel population. Which year did the squirrel population decrease the most?
    • A. 

      1994

    • B. 

      1996

    • C. 

      1999

    • D. 

      1997

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