Lecture 6: Top 6 Major Threats to Biodiversity
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Questions and Answers

What is the primary importance of biodiversity in ecosystems?

  • To preserve fragile habitats and ecosystems
  • To maintain a balance between different species
  • To promote genetic diversity among individuals
  • To boost productivity in ecosystems where species depend on to live (correct)

What is the key aspect of biodiversity that is often overlooked?

  • Genetic diversity among individuals (correct)
  • Species diversity
  • Habitat diversity
  • Ecosystem diversity

Which of the following is an example of a man-made activity that affects biodiversity?

  • Climate change
  • Epidemics
  • Habitat loss and degradation (correct)
  • All of the above

Which of the following is NOT a level of biological organization that contributes to biodiversity?

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

What is the term that describes the variety of life forms on Earth?

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

What is the consequence of ignoring biodiversity?

<p>Loss of ecosystem productivity (B)</p> Signup and view all the answers

What is the primary impact of climate change on ecosystems?

<p>It expands many desert ecosystems (A)</p> Signup and view all the answers

What is the main reason for habitat loss and degradation?

<p>Man-made efforts such as deforestation and industrial expansion (B)</p> Signup and view all the answers

What is the impact of climate change on the distribution of organisms?

<p>It expands their ranges in latitudes (A)</p> Signup and view all the answers

What is the effect of rising temperatures on the timing of physiological functions in animals?

<p>They migrate and mate earlier than usual (A)</p> Signup and view all the answers

What is the result of habitat loss and degradation on organisms?

<p>It declines their population (B)</p> Signup and view all the answers

What is the overall impact of climate change on biodiversity?

<p>It has irreversible impacts on biodiversity (A)</p> Signup and view all the answers

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