Energy Flow in Ecosystems
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Questions and Answers

What is the final community in ecological succession called?

  • Pioneer community
  • Transition community
  • Intermediate community
  • Climax community (correct)

    • Where does primary ecological succession occur?

  • In a place with excessive human interference
  • In a place where life once existed and was destroyed
  • In a place where only small plants exist
  • In a place where life never existed before (correct)

    • How does deforestation impact an ecosystem?

  • Reduces the need for pollination
  • Promotes the growth of larger species
  • Leads to habitat loss for various species (correct)
  • Increases the variety of species present

    • What can happen due to the introduction of exotic species into an ecosystem?

    <p>Disruption of local food chains</p> Signup and view all the answers

    What process occurs when a substance accumulates inside an organism and causes problems?

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

    What is the ultimate source of energy for our planet?

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

    What is the main cause of species extinction mentioned in the text?

    <p>Human interference in food webs</p> Signup and view all the answers

    Which process allows the Sun's energy to be captured and transformed into chemical energy by certain beings?

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

    Why is there a limit to the number of trophic levels in a food chain?

    <p>Because energy is lost as heat and decreases at each level</p> Signup and view all the answers

    In what form is energy lost in activities like breathing, excretion, and locomotion?

    <p>Lost as heat</p> Signup and view all the answers

    Which type of organisms are responsible for recycling organic matter in ecosystems?

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

    What is the term used to describe the cycle through which water passes from a liquid state to a gaseous state and back?

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

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