15 MCQ on Biodiversity: Problems and Prospects with answers

15 MCQ on Biodiversity: Problems and Prospects with answers

1. Which of the following is NOT a major threat to biodiversity?

   A) Habitat loss and fragmentation

   B) Climate change

   C) Genetic diversity

   D) Invasive species

   Answer: C) Genetic diversity

2. What is the primary cause of habitat loss and fragmentation?

   A) Pollution

   B) Climate change

   C) Human activities such as deforestation and urbanization

   D) Natural disasters

   Answer: C) Human activities such as deforestation and urbanization

3. Which term refers to the variety of life forms in a specific habitat, ecosystem, or on Earth as a whole?

   A) Ecosystem services

   B) Ecotourism

   C) Biodiversity

   D) Endemism

   Answer: C) Biodiversity

4. What is the term for species that are found only in specific geographic regions and nowhere else in the world?

   A) Keystone species

   B) Endemic species

   C) Invasive species

   D) Indicator species

   Answer: B) Endemic species

5. What role do keystone species play in maintaining biodiversity?

   A) They have no significant impact on biodiversity

   B) They are the most abundant species in an ecosystem

   C) They play a crucial role in the functioning of their ecosystems

   D) They are invasive species that disrupt biodiversity

   Answer: C) They play a crucial role in the functioning of their ecosystems

6. Which of the following is a consequence of declining biodiversity?

   A) Increased ecosystem resilience

   B) Enhanced stability of ecosystems

   C) Reduced ecosystem services and resilience

   D) Improved adaptability of species

   Answer: C) Reduced ecosystem services and resilience

7. What is the term for the process by which species evolve and adapt to changes in their environment over time?

   A) Evolution

   B) Speciation

   C) Extinction

   D) Genetic drift

   Answer: A) Evolution

8. What is one potential benefit of maintaining biodiversity?

   A) Increased vulnerability to environmental changes

   B) Reduced resilience of ecosystems

   C) Enhanced ecosystem services and human well-being

   D) Accelerated rate of species extinction

   Answer: C) Enhanced ecosystem services and human well-being

9. Which of the following is an example of an ecosystem service provided by biodiversity?

   A) Increased pollution

   B) Decreased soil fertility

   C) Pollination of crops by insects

   D) Erosion of topsoil

   Answer: C) Pollination of crops by insects

10. What is one strategy for conserving biodiversity?

    A) Encouraging deforestation

    B) Promoting habitat destruction

    C) Implementing protected areas and conservation reserves

    D) Introducing invasive species

    Answer: C) Implementing protected areas and conservation reserves

11. Which of the following is a direct consequence of biodiversity loss?

    A) Increased ecosystem stability

    B) Reduced availability of natural resources

    C) Enhanced pollination services

    D) Strengthened food security

    Answer: B) Reduced availability of natural resources

12. What is one way in which climate change affects biodiversity?

    A) By promoting habitat restoration and conservation efforts

    B) By increasing the frequency and severity of extreme weather events

    C) By decreasing the rate of species extinction

    D) By enhancing ecosystem resilience

    Answer: B) By increasing the frequency and severity of extreme weather events

13. What role do biodiversity hotspots play in conservation efforts?

    A) They are areas with low species diversity and do not require conservation efforts

    B) They are areas with high species diversity and are prioritized for conservation efforts

    C) They are regions where invasive species are introduced to enhance biodiversity

    D) They are regions where habitat destruction is encouraged to reduce biodiversity

    Answer: B) They are areas with high species diversity and are prioritized for conservation efforts

14. Which of the following is NOT a potential consequence of biodiversity loss?

    A) Increased susceptibility to diseases

    B) Decreased stability of ecosystems

    C) Improved resilience to environmental changes

    D) Reduced availability of ecosystem services

    Answer: C) Improved resilience to environmental changes

15. How does overexploitation contribute to biodiversity loss?

    A) By promoting sustainable use of natural resources

    B) By reducing pressure on vulnerable species

    C) By depleting populations of valuable species through hunting, fishing, and harvesting

    D) By increasing genetic diversity within populations

    Answer: C) By depleting populations of valuable species through hunting, fishing, and harvesting