LS4.1 Review

How does a decrease in biodiversity impact ecosystem stability?

• Decrease in biodiversity has no impact on ecosystem stability.

• Decrease in biodiversity can reduce ecosystem stability by lowering resilience to changes and disturbances.

• Decrease in biodiversity increases ecosystem stability by enhancing resilience to changes and disturbances.

• Decrease in biodiversity leads to a decrease in the number of species but does not affect ecosystem stability.

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Explain the relationship between biodiversity and the availability of natural resources.

• Natural resources are not affected by the level of biodiversity

• Biodiversity ensures ecosystem resilience and a wider range of available resources.

• Higher biodiversity leads to depletion of natural resources

• Biodiversity has no impact on the availability of natural resources

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Why is biodiversity important for maintaining a balanced ecosystem?

• Biodiversity ensures ecological balance by providing a wide range of species that contribute to ecosystem functions and services.

• Having a limited number of species simplifies ecosystem functions and services.

• Biodiversity leads to overpopulation of certain species, disrupting the ecosystem balance.

• Biodiversity has no impact on maintaining a balanced ecosystem.

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Provide an example of how changes in biodiversity can lead to disruptions in natural resource availability.

• An increase in the population of predators can lead to a surplus of natural resources

• Deforestation does not affect the availability of natural resources

• Climate change has no impact on biodiversity and natural resource availability

• A decrease in the population of pollinators like bees can lead to reduced crop yields, impacting the availability of fruits and vegetables.

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What role does biodiversity play in the resilience of ecosystems?

• Biodiversity decreases ecosystem stability

• Biodiversity has no impact on ecosystem resilience

• Biodiversity leads to reduced productivity in ecosystems

• Biodiversity provides a range of species that can adapt to changing conditions, enhancing ecosystem stability and productivity.

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How can human activities affect biodiversity and subsequently impact natural resources?

• Biodiversity is not affected by habitat destruction

• Human activities have no impact on biodiversity or natural resources

• Human activities can reduce biodiversity through habitat destruction and ecosystem disruption, subsequently impacting the availability of natural resources.

• Ecosystem disruption leads to an increase in natural resources

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Discuss the concept of ecosystem services in relation to biodiversity.

• Ecosystem services are the benefits humans obtain from ecosystems, and biodiversity is essential for maintaining and enhancing these services.

• Biodiversity has a negative impact on ecosystem services

• Ecosystem services are unrelated to biodiversity

• Ecosystem services are only relevant in urban areas

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Explain how the loss of a keystone species can affect ecosystem stability and natural resources.

• The loss of a keystone species can actually improve ecosystem stability and natural resources.

• The loss of a keystone species has no impact on ecosystem stability or natural resources.

• The loss of a keystone species can lead to disruptions in ecosystem balance, affecting biodiversity, population dynamics, and resource availability, ultimately compromising ecosystem stability and natural resources.

• The loss of a keystone species only affects one specific species in the ecosystem.

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Describe the potential consequences of a decline in biodiversity on the overall health of an ecosystem.

• Enhanced ecosystem services

• Increased biodiversity and stability

• Decreased vulnerability to diseases

• The potential consequences of a decline in biodiversity on the overall health of an ecosystem include imbalances, vulnerability to diseases and invasive species, decreased ecosystem services, and reduced stability.

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How can conservation efforts help maintain biodiversity and ensure the sustainability of natural resources?

• Conservation efforts can maintain biodiversity by preserving ecosystems and species, ensuring the sustainability of natural resources.

• Conservation efforts can maintain biodiversity by introducing invasive species to new habitats.

• Conservation efforts can maintain biodiversity by overexploiting natural resources.

• Conservation efforts can maintain biodiversity by destroying ecosystems and species.

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