Practice Questions On Ecosystem! Quiz

15 Questions | Total Attempts: 1805

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Practice Questions On Ecosystem! Quiz

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Questions and Answers
  • 1. 
    What is the correct order of taxa from top to bottom?
    • A. 

      Kingdom, Class, Phylum, Family, Order, Genus, Species

    • B. 

      Kingdom, Family, Class, Phylum, Genus, Species

    • C. 

      Kingdom, Phylum, Order, Class, Family, Genus, Species

    • D. 

      Kingdom, Phylum, Class, Order, Family, Genus, Species

  • 2. 
    What is the initial energy source for almost all communities
    • A. 

      Light

    • B. 

      Photosynthesis

    • C. 

      Heat

    • D. 

      Water

  • 3. 
    A trophic level is a position on the food chain representing the type of substance an organisms eats.
    • A. 

      True

    • B. 

      False

  • 4. 
    An autotroph is a(n)
    • A. 

      Organisms that secretes enzymes onto dead or decaying organic matter which causes decompostion then absorbs the products.

    • B. 

      Organism that synthesises its own carbon from inorganic materials.

    • C. 

      Organism that synthesis its own carbon from organic materials

    • D. 

      Organism that acquires its carbon from organic sources

  • 5. 
    Whats the correct formula for population size given that B = births, I = immigration, D = deaths and E = emigration
    • A. 

      ( B + D ) - ( I + E )

    • B. 

      ( B - I ) + ( D - E )

    • C. 

      ( E - D ) + ( B - E )

    • D. 

      ( B - D ) + ( I - E )

  • 6. 
    • A. 

      A larger rate of polar bears swimming north, rise of temperature in arctic regions, less coniferous forests, higher CO2 levels in atmosphere

    • B. 

      Everyone will die and drown because the sea levels will rise

    • C. 

      Polar ice-caps will melt, arctic species will become extinct, CO2 will increase in the atmosphere, permafrost turning into tundra

    • D. 

      Loss of ice habitat, increased success of pest species, tundra turning to wetland, coniferous forests will expand where tundra previously existed, expansion of range of habitats available to temperate species

  • 7. 
    Populations tend to produce more offspring than the environment can support
    • A. 

      True

    • B. 

      False

  • 8. 
    • A. 

      Evolution is the process by which favourable characteristics are selected over time by nature.

    • B. 

      Evolution is the process by which living organisms are formed, by gradual change, from previous organisms.

    • C. 

      Evolution is Darwin's theory concerning the links between organisms through a series of human induced change.

    • D. 

      Evolution is the process by which organisms have developed over time in order to survive.

  • 9. 
    A _____________ is a group of related organisms having common characteristics, capable of breeding and producing fertile off-spring.
  • 10. 
    ______________   is the study of relationships between living organisms and their environment
  • 11. 
    A _______________ is the interaction of different populations within a specific area.
  • 12. 
    A _________ is a group of individual organisms of the same species living within a specific area.
  • 13. 
    Explain how natural selection leads to evolution and explain an example of evolution in response to a human induce change.
  • 14. 
    Explain how energy and nutrients enter, move through, and exit a food chain in an ecosystem.
  • 15. 
    Distinguish between a consumer, detritivore and sapritroph.