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 (A)</p> Signup and view all the answers

Why is high biodiversity beneficial for an ecosystem?

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

Which of the following is a major threat to biodiversity?

<p>Habitat loss and degradation (B)</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 (D)</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 (C)</p> Signup and view all the answers

What does deforestation pose as a threat to?

<p>Habitat loss and degradation (C)</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 (A)</p> Signup and view all the answers

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

<p>Species biodiversity (A)</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 (B)</p> Signup and view all the answers

What does beta diversity measure?

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

What does genetic biodiversity consider?

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

What is alpha diversity?

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

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