Ecosystem Changes Quiz

What is the impact of invasive species on ecosystems?

• Invasive species can have a negative impact on ecosystems by outcompeting native species for resources, altering the food web, and disrupting ecosystem processes such as nutrient cycling and fire regimes.

• Invasive species only impact non-native species

• Invasive species can improve ecosystem health

• Invasive species have no impact on ecosystems

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How does deforestation contribute to habitat loss?

• Deforestation actually increases the number of habitats available for animals.

• Deforestation only affects certain species, not overall habitat loss.

• Deforestation has no impact on habitat loss.

• Deforestation destroys natural habitats and forces animals to relocate or perish, leading to habitat loss.

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What are the effects of pollution on water quality in ecosystems?

• Pollution has no effect on water quality in ecosystems.

• Pollution can improve water quality in ecosystems.

• Pollution only affects water temperature in ecosystems.

• Pollution can contaminate water, disrupt ecosystems, and decrease oxygen levels.

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How does overfishing affect marine ecosystems?

• Overfishing has a positive effect on habitats and promotes balance in the ecosystem.

• Overfishing depletes fish populations, disrupts the food chain, damages habitats, and causes imbalances in the ecosystem.

• Overfishing increases fish populations and improves the food chain in marine ecosystems.

• Overfishing has no impact on marine ecosystems.

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What is the role of humans in food webs and how does it impact ecosystems?

• Humans play multiple roles in food webs and their activities can have significant impacts on ecosystems.

• Humans have no role in food webs and do not impact ecosystems.

• Humans only have a minor role in food webs and their activities have minimal impacts on ecosystems.

• Humans are the primary drivers of food webs and their activities have no impact on ecosystems.

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Why are invasive species considered a threat to native species in ecosystems?

• Invasive species do not compete for resources with native species

• Invasive species do not alter the physical environment of the ecosystem

• Invasive species help native species thrive

• Invasive species compete for resources, prey on native species, introduce new diseases, and alter the physical environment of the ecosystem.

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What are some consequences of deforestation on biodiversity in ecosystems?

• No impact on habitat, stable populations, unaffected food chain, unchanged resource availability, no extinction of species, no impact on ecosystem balance and diversity

• Increase in habitat, increase in populations, enhancement of food chain, increased resource availability, promotion of species, positive impact on ecosystem balance and diversity

• Decrease in habitat, increase in populations, disruption of food chain, increased resource availability, promotion of species, positive impact on ecosystem balance and diversity

• Loss of habitat, decline in populations, disruption of food chain, reduced resource availability, extinction of species, impact on ecosystem balance and diversity

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How does pollution impact the health of aquatic organisms in ecosystems?

• Pollution can impact the health of aquatic organisms in ecosystems by contaminating their habitat, reducing the amount of oxygen in the water, and causing diseases.

• Aquatic organisms are not affected by pollution

• Pollution can improve the health of aquatic organisms

• Pollution has no impact on the health of aquatic organisms

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What are the consequences of overfishing on the balance of marine ecosystems?

• Overfishing has no impact on the balance of marine ecosystems.

• Overfishing actually helps to maintain the balance of marine ecosystems.

• Overfishing only affects a small number of fish species and does not disrupt the overall balance of marine ecosystems.

• Overfishing disrupts the balance of marine ecosystems by causing imbalances in predator-prey relationships, depleting fish species, disrupting ecosystem structure and function, and impacting fishing communities.

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How does human activity disrupt food webs in ecosystems?

• Human activity disrupts food webs in ecosystems through climate change, deforestation, and pesticide use.

• Human activity disrupts food webs in ecosystems through habitat destruction, pollution, overfishing, and introduction of invasive species.

• Human activity disrupts food webs in ecosystems through overpopulation, urbanization, and genetic modification.

• Human activity does not disrupt food webs in ecosystems; it only enhances biodiversity and ecosystem stability.

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