IB Biology - Ecology Test Review

25 Questions

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Ecology Quizzes & Trivia

IB biology can be a bit challenging for anyone taking it. Are you one of them and have read up on the ecology topic and now feel certain you have a good understanding of it? Why don’t you take the trivia below and brush up on the topic? All the best!


Questions and Answers
  • 1. 
    Sunlight is the initial source of energy in an ecosystem
    • A. 

      True

    • B. 

      False

  • 2. 
    Light energy is converts chemical energy using oxygen compounds by photosynthesis.
    • A. 

      True

    • B. 

      False

  • 3. 
    Chemical energy flows through the food chain by the means of killing
    • A. 

      True

    • B. 

      False

  • 4. 
    The food chain is as follows from beginning to end:Producers/Primary Consumers/Secondary Consumers/Tertiary Consumers/etc. 
    • A. 

      True

    • B. 

      False

  • 5. 
    Peat is partially decomposed plant materials and can be used as a fossil fuel.
    • A. 

      True

    • B. 

      False

  • 6. 
    Organic matter: heated to its ignition temperature when oxygen is present will explode and turn into gas.
    • A. 

      True

    • B. 

      False

  • 7. 
    Energy released from [Blank] compounds by [Blank] is used in living organism and converted to [Blank].
  • 8. 
    [Blank] is the total mass of a group of organisms.
  • 9. 
    Only [Blank] of energy will be passed to the next trophic level on the food chain.
  • 10. 
    An example of carbon fixation would be [Blank]
  • 11. 
    Partially decomposed peat when put under extreme [Blank], [Blank] , and [Blank] from above sediments can be transformed into coal.
  • 12. 
    The photosynthesis equation is:
    • A. 

      Glucose + Oxygen = Carbon Dioxide + Water + Energy

    • B. 

      Glucose + Oxygen = Energy

    • C. 

      There is no equation

    • D. 

      Oxygen + Carbon Dioxide = Water

  • 13. 
    Living organisms cannot perform which conversion:
    • A. 

      Muscle contractions

    • B. 

      Chemical to electrical energy

    • C. 

      Chemical energy to cool energy

    • D. 

      Nerve impulses

  • 14. 
    Heat resulting from cellular respiration makes an organism warmer.Cold-blooded organisms can become ______ active.
    • A. 

      Less

    • B. 

      More

    • C. 

      Equally as

  • 15. 
    • A. 

      Precipitation

    • B. 

      Evaporation

    • C. 

      Absorbing

    • D. 

      Combustion

  • 16. 
    How is Water Vapour removed?
    • A. 

      Precipitation

    • B. 

      Evaporation

    • C. 

      Absrobing

    • D. 

      Combustion

  • 17. 
    • A. 

      Burning of fossil fuels

    • B. 

      Forest/grassland fires

    • C. 

      Combustion

    • D. 

      All of the above

  • 18. 
    Chlorofluorocarbons also known as _____ ,contain ____ atoms which can destroy ozone molecules resulting in holes in the ______ layer in the stratosphere.
    • A. 

      CFC, Cl, ozone

    • B. 

      ChFlCb, Cl, O3

    • C. 

      Cl, O3, CFC

    • D. 

      O3, CFC, ozone

  • 19. 
    Carbonic Acid is made up of:
    • A. 

      Carbon Dioxide

    • B. 

      Water

    • C. 

      Oxygen

    • D. 

      Carbon

  • 20. 
    Methanogenesis is carried out in many anaerobic environments such as:
    • A. 

      Mud along shores in bed of lakes

    • B. 

      Swamps

    • C. 

      Guts of termites and ruminant animals

  • 21. 
    Methane is oxidized by:
    • A. 

      CO

    • B. 

      CO2

    • C. 

      H2O

    • D. 

      O2

  • 22. 
     _____ and _____ have exoskeletons made out of Calcium Carbonate.
    • A. 

      Crabs

    • B. 

      Turtles

    • C. 

      Molluscs

    • D. 

      Coral Reefs

  • 23. 
    The 2 most significant greenhouse gases are:
    • A. 

      Water Vapour

    • B. 

      Methane

    • C. 

      Carbon Dioxide

    • D. 

      Ethanol

  • 24. 
    The 3rd and 4th most significant green house gases are:
    • A. 

      Water Vapour

    • B. 

      Carbon Dioxide

    • C. 

      Methane

    • D. 

      Nitrous Oxide