Simple Ecology Practice Quiz Questions

34 Questions

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Ecology Quizzes & Trivia

Simply described, Ecology is the branch of biology in which we study the relationship among living organisms and their environments. If you think you have what it takes to take up this challenge, be our guest. All the best.


Questions and Answers
  • 1. 
    The realized niche of an organism is:
    • A. 

      The area a species can occupy in the face of exploitive competition

    • B. 

      The habitat of a species within a community resulting from clumping

    • C. 

      The habitat that exists in nature as opposed to the ideal

    • D. 

      The life pattern that the organism actually assumes

  • 2. 
    All of the following statements about ecology are correct EXCEPT:
    • A. 

      Ecologists may study populations and communities of organisms

    • B. 

      Ecological studies may involve the use of models and computers

    • C. 

      Ecology is a discipline that is independent from natural selection and evolutionary history

    • D. 

      Ecology spans increasingly comprehensive levels of organisation, from individuals to ecosystems

    • E. 

      Ecology is the study of the interactions between biotic and abiotic aspects of the environment

  • 3. 
    Which ecological unit incorporates abiotic factors
    • A. 

      Community

    • B. 

      Ecosystem

    • C. 

      Population

    • D. 

      Species

    • E. 

      Symbiosis

  • 4. 
    Important abiotic factors in ecosystems include which of the following? I. Temperature II. Water III. Wind
    • A. 

      I only

    • B. 

      II only

    • C. 

      III only

    • D. 

      I and II only

    • E. 

      I, II and III

  • 5. 
    All of the following statements about biomes are correct EXCEPT:
    • A. 

      Biomes are major terrestrial communities

    • B. 

      Within biomes there may be extensive patchiness

    • C. 

      Climographs are often used to demonstrate climatic differences between biomes

    • D. 

      Temperature and precipitation account for most of the variation between biomes

    • E. 

      Biomes can be recognised as separate entities because they have sharp, well-defined boundaries

  • 6. 
    Which of the following abiotic factors has the greatest influence on the metabolic rates of plants and animals?
    • A. 

      Water

    • B. 

      Wind

    • C. 

      Temperature

    • D. 

      Rocks and soil

    • E. 

      Disturbances

  • 7. 
    The following factors were found to limit the distribution of fish populations: temperature, oxygen content of the water and free protein in the water. This is a:
    • A. 

      Dimensional profile

    • B. 

      Mutualistic niche

    • C. 

      Realised niche

    • D. 

      Fundamental niche

  • 8. 
    The realized niche of species often differs from their fundamental niche. This could be explained by any of the following EXCEPT:
    • A. 

      Competitive exclusion

    • B. 

      Predation when densities are high

    • C. 

      Parasitism when densities are high

    • D. 

      Interspecific competition

    • E. 

      Vegetation changes

  • 9. 
    The rate at which solar energy is converted to chemical energy of organic compounds by autotrophs is termed
    • A. 

      Biomass

    • B. 

      Standing crop

    • C. 

      Biomagnification

    • D. 

      Primary productivity

    • E. 

      Secondary productivity

  • 10. 
    A cow’s diet indicates that it is primarily a 
    • A. 

      Primary consumer

    • B. 

      Secondary consumer

    • C. 

      Decomposer

    • D. 

      Producer

  • 11. 
    To recycle nutrients, the minimum an ecosystem must have is
    • A. 

      Producers

    • B. 

      Producers and decomposers

    • C. 

      Producers, primary consumers and decomposers

    • D. 

      Producers, primary consumers, secondary consumers and decomposers

    • E. 

      Producers, primary consumers, secondary consumers, top carnivores and decomposers

  • 12. 
    The Coriolis effect results in:
    • A. 

      Rising of air at the equator

    • B. 

      Falling of air near the poles

    • C. 

      Deflection of moving air due to rotation of the Earth

    • D. 

      Altitudinal variations in temperature

    • E. 

      All responses are correct

  • 13. 
    Abiotic factors in the environment are all __________.
    • A. 

      The same as dead things

    • B. 

      Nonliving

    • C. 

      Easily measured

    • D. 

      Living

  • 14. 
    Lions, birds, snakes and trees are all __________.
    • A. 

      Biotic factors

    • B. 

      In the same food chain

    • C. 

      Part of a niche

    • D. 

      Abiotic factors

  • 15. 
    Grass --> Grasshopper --> Mockingbird represents __________.
    • A. 

      An ecosystem

    • B. 

      A food chain

    • C. 

      A food web

    • D. 

      A food pyramid

  • 16. 
    Algae, grasses and trees are all __________.
    • A. 

      Decomposers

    • B. 

      Pyramids

    • C. 

      Consumers

    • D. 

      Producers

  • 17. 
    Trophic level represents a _________.
    • A. 

      Pyramid

    • B. 

      Consumer

    • C. 

      Chemical cycle

    • D. 

      Feeding level

  • 18. 
    The portion of Earth that supports life is the __________.
    • A. 

      Biosphere

    • B. 

      Community

    • C. 

      Individual

    • D. 

      Ecosystem

  • 19. 
    An organism`s role in its community is its __________, and where it lives is its _________.
    • A. 

      Role in community; niche

    • B. 

      Niche; role in the community

    • C. 

      Habitat; niche

    • D. 

      Niche; habitat

  • 20. 
    BRIEFLY describe the terms ‘fundamental’ and ‘realised’ niche
  • 21. 
    Populations dynamics refer to whether a species is thriving or dwindling
    • A. 

      True

    • B. 

      False

  • 22. 
    List and BRIEFLY describe two examples of how ecology can assist in solving problems of species distribution
  • 23. 
    List and BRIEFLY describe two examples of how ecology can assist in solving problems of species abundance
  • 24. 
    Compare and contrast the terms ‘biotic’ and ‘abiotic’ factors
  • 25. 
    The distribution and abundance of organisms in terrestrial environments depends primarily on the availability of WATER 
    • A. 

      True

    • B. 

      False

  • 26. 
    List and BRIEFLY describe three physical principles which determines movement of air
  • 27. 
    • A. 

      True

    • B. 

      False

  • 28. 
    Define the term 'primary production'
  • 29. 
    List the three main sources of expenditure of energy in an ecological sense
  • 30. 
    The two main limits to primary production on land are water and temperature
    • A. 

      True

    • B. 

      False

  • 31. 
  • 32. 
    Define the term 'homeotherm'
  • 33. 
    Cellular respiration is wasteful and the waste is highest in homeotherms
    • A. 

      True

    • B. 

      False

  • 34.