Ecosystem Disruption and Succession Quiz

What is primary ecological succession?

• The gradual replacement of one community by another in a new habitat

• The sudden change in an ecosystem due to a natural disaster

• The introduction of invasive species into an ecosystem

• The extinction of a species due to human activity

How does a forest fire affect the energy transfer in a food web?

• It increases the energy available to herbivores

• It decreases the energy available to all trophic levels

• It has no effect on the energy transfer

• It increases the energy available to carnivores

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Which of the following is an example of secondary succession?

• The formation of a new island from volcanic activity

• The regrowth of a forest after a wildfire

• The creation of a new pond

• The development of a desert ecosystem

What impact does human intervention, such as deforestation, have on ecosystems?

• It increases biodiversity

• It stabilizes the ecosystem

• It disrupts the transfer of energy in food webs

• It has no impact on ecosystems

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Which of the following best describes the role of pioneer species in primary succession?

• They are the last species to colonize an area

• They modify the environment, making it suitable for other species

• They are the dominant species in a mature ecosystem

• They decrease the biodiversity of an area

How do natural disasters like hurricanes affect food webs in ecosystems?

• They increase the number of producers

• They have no effect on food webs

• They can disrupt the balance of energy transfer

• They increase the number of top predators

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What is the main difference between primary and secondary succession?

• Primary succession occurs in areas with existing soil, while secondary succession does not

• Secondary succession occurs in areas with existing soil, while primary succession does not

• Primary succession occurs after a natural disaster, while secondary succession occurs after human intervention

• Secondary succession occurs after a natural disaster, while primary succession occurs after human intervention

What effect does overfishing have on marine food webs?

• It increases the population of prey species

• It stabilizes the marine ecosystem

• It disrupts the energy transfer by removing key species

• It has no effect on marine food webs

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Which of the following is a likely consequence of secondary succession in an abandoned agricultural field?

• The field will remain barren indefinitely

• The field will develop into a mature forest over time

• The field will become a desert

• The field will become a permanent wetland

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How does pollution affect the transfer of energy in ecosystems?

• It increases the efficiency of energy transfer

• It has no effect on energy transfer

• It can reduce the energy available to organisms by damaging habitats

• It increases the energy available to top predators

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