Ecology Unit Test For Students! Quiz

19 Questions | Total Attempts: 521

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Ecology Unit Test For Students! Quiz - Quiz

Think you an expert of Ecology? Ecology is a division of life science that deals with examining organisms and their relationships with other organisms and their environment. Natural Science is one of the most exciting and complex forms of science: an ecologist studies living things and their habitats. Ecology shapes the distribution and abundance in the environment. If you are looking for a way to study for the ecology test, this incredible quiz can help.


Questions and Answers
  • 1. 
    If the flow of energy in an Arctic ecosystem goes through a simple food chain from seaweeds to fish to seals to polar bears, then which of the following is TRUE?
    • A. 

      The carnivores can provide more food for the Eskimos than the herbivores can.

    • B. 

      Polar bears can provide more food for Eskimos than seals can.

    • C. 

      Polar bear meat probably contains the highest concentrations of fat-soluble toxins.

    • D. 

      The total energy content of the seaweeds is lower than that of the seals.

    • E. 

      ) Seals are more numerous than fish.

  • 2. 
    The high levels of pesticides found in birds of prey is an example of
    • A. 

      Predation

    • B. 

      Biomagnification

    • C. 

      Carrying capacity

    • D. 

      A density-dependent effect

    • E. 

      A density-independent effect

  • 3. 
    In the nitrogen cycle, the bacteria that replenish the atmosphere with N2 are:
    • A. 

      Denitrifying bacteria

    • B. 

      Nitrogen-fixing bacteria.

    • C. 

      Nitrifying bacteria

    • D. 

      Paramecia

    • E. 

      Rhizobium bacteria

  • 4. 
    In which Canadian biome would you expect to find the most acidic soil?
    • A. 

      Temperate deciduous forest biome

    • B. 

      Grassland biome

    • C. 

      Tundra biome

    • D. 

      Tropical rainforest biome

    • E. 

      Boreal forest biome

  • 5. 
    In which biome would you find a root system that involves tap roots that run deep into the soil?
    • A. 

      Tundra biome

    • B. 

      Grassland biome

    • C. 

      Temperate deciduous forest biome

    • D. 

      Boreal forest biome

    • E. 

      Desert biome

  • 6. 
    Which of the following would NOT be an example of a density-dependent factor?
    • A. 

      Increased predation

    • B. 

      Disease caused by microorganisms

    • C. 

      Introduction of an exotic species

    • D. 

      Spraying with pesticides

    • E. 

      Food shortage

  • 7. 
    Which of the following factors that determine biotic potential describes the number of offspring that reach reproductive age?
    • A. 

      Birth potential

    • B. 

      Capacity for survival

    • C. 

      Procreation

    • D. 

      Length of reproductive life

    • E. 

      Carrying capacity

  • 8. 
    For the following graph of survivorship, which curve represents a species that displays little parental care and high biotic potential?
    • A. 

      Type I

    • B. 

      Type II

    • C. 

      Type III

    • D. 

      Type I and II

    • E. 

      Type I and III

  • 9. 
    Organic substances always contain atoms of which of the following elements?
    • A. 

      Hydrogen and carbon

    • B. 

      Carbon and oxygen

    • C. 

      Oxygen and nitrogen

    • D. 

      Carbon and nitrogen

    • E. 

      Oxygen and hydrogen

  • 10. 
    Approximately what percentage of the atmosphere is made up of nitrogen gas?
    • A. 

      < 1%

    • B. 

      3%

    • C. 

      20%

    • D. 

      30%

    • E. 

      80%

  • 11. 
    For the hare-lynx population-time graph below, what is the approximate carrying capacity for the lynx?
    • A. 

      10

    • B. 

      40

    • C. 

      60

    • D. 

      80

    • E. 

      100

  • 12. 
    The following table is taken from the "Guide to Eating Ontario Sportfish."  Based on the data presented, which fish would have accumulated the greatest amount of toxins?
    • A. 

      Pumpkinseed

    • B. 

      Yellow perch

    • C. 

      Largemouth bass

    • D. 

      Walleye

    • E. 

      Northern pike

  • 13. 
    The following table is taken from the "Guide to Eating Ontario Sportfish."  Based on the data presented, the fish that would be safest to eat would be:
    • A. 

      The ones higher in trophic level.

    • B. 

      The ones who are largest in size.

    • C. 

      The higher order carnivorous fish.

    • D. 

      The smallest fish at lower trophic levels.

    • E. 

      Only fish smaller than 55cm.

  • 14. 
    The Canadian Shield is a region that was once exposed bedrock due to glacial retreat.  After being covered initially with lichen, other grass-like vegetation grew.  This added more nutrient to the soil eventually allowing larger trees like spruce, pine, and balsam to grow.  This is an example of:
    • A. 

      Primary succession

    • B. 

      Secondary succession

    • C. 

      Bioamplification

    • D. 

      Law of the minimum

    • E. 

      Law of tolerance

  • 15. 
    Trees that grow with deep tap roots would most likely be an adaptation for which biome?
    • A. 

      Tundra

    • B. 

      Grassland

    • C. 

      Boreal forest

    • D. 

      Temperate deciduous forest

    • E. 

      Desert

  • 16. 
    Which of the following processes is NOT involved in the carbon cycle?
    • A. 

      Cellular respiration

    • B. 

      Decomposition

    • C. 

      Combustion

    • D. 

      Photosynthesis

    • E. 

      Ecological succession

  • 17. 
    Which of the following is FALSE regarding nitrogen-fixation?
    • A. 

      Nitrogen-fixation involves the conversion of ammonia to nitrates.

    • B. 

      Nitrogen-fixation may be accomplished by the action of lightning.

    • C. 

      Nitrogen gas reacts with oxygen in the air to produce nitrates.

    • D. 

      Plants supply nitrogen-fixing bacteria with the sugar they need to make the nitrates.

    • E. 

      Nitrogen-fixation may be accomplished by bacteria that grow on the roots of legumes.

  • 18. 
    If you were to move from lower altitudes to higher altitudes, what would be the progression of biomes would you experience based on local vegetation?
    • A. 

      Tropical forest --> boreal forest --> tundra --> temperate deciduous forest

    • B. 

      Boreal forest --> tropical forest --> temperate deciduous forest --> tundra

    • C. 

      Temperate deciduous forest --> boreal forest --> tropical forest --> tundra

    • D. 

      Tropical forest --> temperate deciduous forest --> boreal forest --> tundra

    • E. 

      Tropical forest --> temperate deciduous forest --> tundra --> boreal forest

  • 19. 
    Wetlands experience ecological succession when they become invaded by aquatic plants, to eventually become swamps, and ultimately they develop into a peat bog.  This is an example of:
    • A. 

      Primary succession

    • B. 

      Secondary succession

    • C. 

      Eutrophication

    • D. 

      Deflected succession

    • E. 

      Climax community

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