Biodiversity Quiz
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Questions and Answers

What does biodiversity represent?

  • The total number of species on Earth
  • The total number of habitats on Earth
  • The total variety of all life on Earth (correct)
  • The total number of individuals on Earth
  • Why is biodiversity important for all life on Earth?

  • It increases the number of wild animals
  • It ensures a stable climate and food supply (correct)
  • It provides free medicines for humans
  • It protects the coasts from natural disasters
  • How have human activities affected biodiversity in the last 50 years?

  • Increased the number of habitats across the globe
  • Reduced populations of wild animals by 60% (correct)
  • Drove whole species to evolve rapidly
  • Caused a significant increase in the number of flying insects
  • What has happened to the number of lions in Africa in the last 50 years?

    <p>Dropped by 65%</p> Signup and view all the answers

    Why is biodiversity loss considered catastrophic for nature and ourselves?

    <p>It affects the stability of ecosystems and resources</p> Signup and view all the answers

    What is the main message regarding biodiversity loss in the text?

    <p>Biodiversity loss is as important as climate change</p> Signup and view all the answers

    What does the text suggest about the current state of biodiversity?

    <p>It is dropping everywhere and fast</p> Signup and view all the answers

    What is the suggested action to ensure the increase of biodiversity again?

    <p>Reduce human activities that harm biodiversity</p> Signup and view all the answers

    What is the primary ion inside the cells?

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

    What creates an electrochemical gradient in the cells?

    <p>Difference in levels of sodium and potassium</p> Signup and view all the answers

    Which physiological processes can be affected by the sodium-potassium pump mechanism?

    <p>Kidney filtering, male fertility, brain and heart functioning</p> Signup and view all the answers

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