Food Chain and Trophic Levels Quiz
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Questions and Answers

What is the main difference between a food chain and a food web?

  • A food chain has fewer trophic levels than a food web
  • A food chain includes apex predators, while a food web does not
  • A food chain starts with decomposer species, while a food web starts with producer organisms
  • A food chain follows a direct, linear pathway, while a food web shows a complex network of feeding relations (correct)

    • What is used as a common metric to quantify food web trophic structure?

  • Number of producer organisms
  • Average body size of organisms in the web
  • Total energy produced by the web
  • Food chain length (correct)

    • What is the role of tertiary consumers in a food chain?

  • They produce their own food via photosynthesis
  • They decompose organic matter
  • They consume secondary consumers (correct)
  • They are eaten by primary consumers

    • What do earthworms and woodlice represent in a food chain?

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

    What is the starting point of a food chain?

    <p>Producer organisms</p> Signup and view all the answers

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