Population Ecology

What happens to population density as it becomes more dense?

• Competition for resources increases

• Population growth becomes unlimited

• Competition for resources decreases

• Resources per individual increase

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NGSS.MS-LS2-1

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What role does competition play in population ecology?

• It increases the carrying capacity

• It limits population growth

• It has no effect on population size

• It promotes unlimited growth

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NGSS.MS-LS2-4

What would happen to a population with unlimited resources?

• It would decrease over time

• It would grow exponentially

• It would fluctuate around a carrying capacity

• It would remain constant

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is an example of a natural event that can limit population growth?

• Increased hunting protections

• Drought or fire

• Technological advancements

• Introduction of new species

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NGSS.MS-LS2-4

Why do populations not grow exponentially indefinitely?

• Due to constant growth rate (R)

• Because of unlimited resources

• Due to constant predator absence

• Because of limiting factors like competition and natural disasters

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is carrying capacity?

• The maximum number of individuals that can be hunted

• The average number of individuals an environment can support

• The total amount of resources in an environment

• The rate of exponential growth in a population

Which of the following is a limiting factor for population growth?

• Constant predator absence

• Infinite water sources

• Nutrient availability

• Unlimited space

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What happens during overgrazing by herbivores?

• Population growth stabilizes

• Carrying capacity increases

• Population crash occurs

• Exponential growth continues

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

How does the growth rate change as a population nears its carrying capacity?

• It fluctuates widely

• It increases significantly

• It remains constant

• It decreases to zero