Ecosystems and Food Chains Quiz
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Questions and Answers

What do food webs represent within an ecosystem?

  • The reproduction patterns of organisms
  • The rock cycle in the ecosystem
  • Interactions between organisms in different food chains (correct)
  • The water cycle in the ecosystem

    • How does energy flow through an ecosystem according to the text?

  • In a downward trend from top predators to producers
  • In a linear fashion similar to a single food chain
  • In an upward trend from producers to consumers (correct)
  • Only from predators to prey

    • What is the approximate percentage of energy transferred from one trophic level to the next?

  • 50%
  • 10% (correct)
  • 20%
  • 5%

    • How does energy transfer in a food web differ from a single food chain?

    <p>Energy flow is not exactly linear in a food web</p> Signup and view all the answers

    What happens to energy that is not transferred between trophic levels?

    <p>It is lost as heat or consumed by metabolism</p> Signup and view all the answers

    Which organisms typically occupy the lowest trophic level in an ecosystem?

    <p>Producers</p> Signup and view all the answers

    What role do quaternary consumers play in an ecosystem?

    <p>They feed on primary consumers</p> Signup and view all the answers

    How is a food web different from a food chain?

    <p>A food web shows interconnected feeding relationships, while a food chain is linear</p> Signup and view all the answers

    What happens when a tertiary consumer feeds on a secondary consumer?

    <p>50% of the energy is transferred to the tertiary consumer according to the rule of thumb</p> Signup and view all the answers

    What is the significance of interconnected energy flow in a food web?

    <p>It demonstrates how energy can flow between different trophic levels</p> Signup and view all the answers

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