Interactions In Ecosystems Test

10 Questions | Total Attempts: 633

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Interactions In Ecosystems Test

5th grade quiz about energy and the food chain


Questions and Answers
  • 1. 
     In an ecosystem, birds depend on insects to survive.  If someone spreads pesticide to control the insect population, which of the following is most likely to happen?  
    • A. 

      The bird population will increase.

    • B. 

      The bird population will decrease.

    • C. 

      The bird population will decrease, then increase.

    • D. 

      The bird population will increase, then decrease.

  • 2. 
    Corals have a symbiotic relationship with plant-like algae that grow inside them.  How do the algae benefit the corals?
    • A. 

      The algae provide the corals with various nutrients.

    • B. 

      The algae help the corals make a hard outside coating.

    • C. 

      The algae allow the corals to live in deep ocean environments.

    • D. 

      The algae release a toxin that keeps predators away from the corals.

  • 3. 
    Look at the following diagram below. Where is the greatest amount of energy?
    • A. 

      Plant

    • B. 

      Rabbit

    • C. 

      Snake

    • D. 

      Owl

  • 4. 
    How to carnivores obtain energy?
    • A. 

      They eat plants.

    • B. 

      They eat animals.

    • C. 

      They eat animals and plants.

    • D. 

      They eat the food they make.

  • 5. 
     What role do decomposers play in ecosystems?
    • A. 

      They break down nitrogen and oxygen.

    • B. 

      They break down waste and dead matter.

    • C. 

      They provide nutrients for carnivores to make energy.

    • D. 

      They provide nutrients for omnivores to make energy.

  • 6. 
    All _____________________ are consumers. (plants, animals)
  • 7. 
    Energy can flow through an ecosystem from a producer to a(n) __________________.(producer, herbivore)
  • 8. 
    Energy ________________ disappear. (does, does not)
  • 9. 
    When new plants and animals are introduced into an ecosystem, they can cause changes.  Suppose that people bring to an area a type of plant not normally found there.  The new plants grow quickly in their new environment.    What is one possible effect of the new plants on the plants that were already growing in the area?  What might happen to herbivores that eat only the plants that were growing there?  Explain your answers.
  • 10. 
      Use the diagram of the food web below to describe the flow of energy in a food chain.  Include at least three organisms in your description of the food chain. Identify each organism in your food chain as a producer, herbivore, omnivore, carnivore or decomposer.
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