Ecosystem Dynamics

Front

What is the impact of a dramatic increase in a deer population on the ecosystem?

Back

There may not be enough food to support the increased deer population, leading to potential starvation and a decline in the deer population.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Front

What is secondary succession?

Back

Secondary succession is the process of ecological recovery that occurs in an area where soil and some organisms still exist after a disturbance, allowing the ecosystem to recover more quickly than primary succession.

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Front

What has been the trend in extinction rates in recent decades?

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Extinction rates have been significantly higher in recent decades compared to historical rates.

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Front

What type of succession occurs in an area where no soil exists initially?

Back

Primary succession occurs in areas where no soil exists, such as after a volcanic eruption or glacier retreat.

Front

What is the potential ecological impact of using pesticides on insect populations?

Back

The decrease in insect populations due to pesticide use can lead to fewer predators, such as lizards, that rely on insects for food.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Front

Define climax community in the context of ecological succession.

Back

A climax community is a stable and mature ecological community that has reached the final stage of succession, characterized by a diverse array of species and a balanced ecosystem.

Front

What role do decomposers play in an ecosystem?

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Decomposers break down dead organic matter, recycling nutrients back into the soil and supporting plant growth.

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NGSS.MS-LS2-3

Front

Explain the concept of carrying capacity in an ecosystem.

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Carrying capacity is the maximum population size of a species that an environment can sustain indefinitely without degrading the habitat.

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NGSS.MS-LS2-4

Front

What is the difference between primary and secondary succession?

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Primary succession occurs in lifeless areas without soil, while secondary succession occurs in areas where soil is present after a disturbance.

Front

How do invasive species affect ecosystem dynamics?

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Invasive species can disrupt local ecosystems by outcompeting native species for resources, leading to declines in biodiversity.

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