Biodiversity and Ecosystem Stability
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Questions and Answers

Which of the following is true about populations with low genetic diversity?

  • They are less likely to crash
  • They have a high genetic diversity
  • They have a large population size
  • They are more susceptible to genetic mutation (correct)

    • What does genome size refer to?

  • The number of species in an ecosystem
  • The number of niches in an ecosystem
  • The number of different ecosystems in an ecosystem
  • The amount of genetic material in a species' DNA (correct)

    • Why are cheetah populations decreasing?

  • Due to high genetic diversity
  • Due to high ecological biodiversity
  • Due to low genetic diversity (correct)
  • Due to large population size

    • What does ecological biodiversity measure?

    <p>The number of different ecosystems</p> Signup and view all the answers

    Why is high biodiversity beneficial for an ecosystem?

    <p>It allows for overlapping species in niches</p> Signup and view all the answers

    Which of the following is a major threat to biodiversity?

    <p>Habitat loss and degradation</p> Signup and view all the answers

    What is the importance of measuring biodiversity in an ecosystem?

    <p>To assess the health and stability of an ecosystem</p> Signup and view all the answers

    Which of the following is true about ecosystems with high biodiversity?

    <p>They are less susceptible to new problems</p> Signup and view all the answers

    What does deforestation pose as a threat to?

    <p>Habitat loss and degradation</p> Signup and view all the answers

    Why is it important to consider the scale of biodiversity?

    <p>To understand the diversity of ecosystems within a larger context</p> Signup and view all the answers

    Which type of biodiversity considers the total number of species within a given area?

    <p>Species biodiversity</p> Signup and view all the answers

    What is the estimated range of the total number of species present on Earth at any given time?

    <p>3.5 million to over 100 million species</p> Signup and view all the answers

    What does beta diversity measure?

    <p>The number of species that do not overlap between ecosystems</p> Signup and view all the answers

    What does genetic biodiversity consider?

    <p>The diversity of genomes within an ecosystem</p> Signup and view all the answers

    What is alpha diversity?

    <p>The total number of species within a defined area</p> Signup and view all the answers

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