Ecosystems and Food Chains
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Questions and Answers

What is the importance of genetic variability in a species?

  • It increases the vulnerability of a species to diseases
  • It is essential for maintaining a healthy breeding population (correct)
  • It ensures the extinction of a species
  • It reduces the number of species in an ecosystem

    • What is the term for the diversity of genes within a species?

  • Ecosystem Diversity
  • Genetic Diversity (correct)
  • Species Diversity
  • Ecological Diversity

    • Which of the following is an ecosystem service?

  • Pollination (correct)
  • Predation
  • Decomposition
  • Photosynthesis

    • What is the term for the number of different species of plants and animals in a region?

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

    What is the term for the variety of living organisms in an ecosystem?

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

    What is the term for the role of natural enemies in controlling diseases?

    <p>Disease Control</p> Signup and view all the answers

    What percentage of animal protein consumed worldwide comes from fish and other marine animals?

    <p>20%</p> Signup and view all the answers

    What is the estimated annual value of fish and other marine animals consumed worldwide?

    <p>$50-$100 billion</p> Signup and view all the answers

    What is the main benefit of having a diverse range of species in an ecosystem?

    <p>It provides essential goods and services for human well-being</p> Signup and view all the answers

    What is a major threat to biodiversity?

    <p>Habitat destruction and fragmentation</p> Signup and view all the answers

    What is the role of healthy pollinators in crop production?

    <p>They are essential for the production of more than a third of the world's crops</p> Signup and view all the answers

    What is the estimated number of plant species that are cultivated or harvested from the wild?

    <p>More than 7000</p> Signup and view all the answers

    What is a major consequence of increasing population growth?

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

    What is the term for a species that is exclusively native to a particular place or biota?

    <p>Endemic species</p> Signup and view all the answers

    What is the scientific study of how humans impact organisms and the development of ways to protect biological diversity?

    <p>Conservation biology</p> Signup and view all the answers

    Which country has the highest number of endemic species per unit area of habitat, after Madagascar?

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

    What is the term for a species that is at risk of extinction due to habitat loss, pollution, or other human activities?

    <p>Endangered species</p> Signup and view all the answers

    What is the term for regions that experience an alarming rate of destruction of important natural resources that harbor biodiverse organisms?

    <p>Biodiversity hotspots</p> Signup and view all the answers

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