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Food Chains in Ecosystems
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Food Chains in Ecosystems

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Questions and Answers

What occurs when consumers have more than one food source?

  • Branching off of food chains occurs (correct)
  • Linear food chains are formed
  • Energy flow is reversed
  • Food chains become shorter

    • What do food webs represent?

  • The transfer of nutrients only from one trophic level to another
  • The transfer of energy only from producers to primary consumers
  • The transfer of energy and nutrients among organisms in an ecosystem (correct)
  • The transfer of energy only from the sun to plants

    • What is a characteristic of multilevel consumers or omnivores?

  • They are always producers
  • They can occupy more than one trophic level (correct)
  • They only consume plants
  • They occupy only one trophic level

    • What percentage of total light falling on green plants is utilized for photosynthesis?

    <p>1%</p> Signup and view all the answers

    What is the term for the transfer of energy from one trophic level to another trophic level?

    <p>Energy flow</p> Signup and view all the answers

    What is the primary source of energy for an ecosystem?

    <p>Solar energy</p> Signup and view all the answers

    What is the role of photosynthesis in an ecosystem?

    <p>To transform solar energy into chemical energy</p> Signup and view all the answers

    What is formed when many food chains are interconnected?

    <p>A food web</p> Signup and view all the answers

    At which trophic level do humans occupy when they consume food derived from plants?

    <p>2nd trophic level</p> Signup and view all the answers

    What is the term for the movement of nutrients through an ecosystem?

    <p>Nutrient cycle</p> Signup and view all the answers

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