Miller-Levine (Macaw) - Chapter 5: Populations

Which of the following tells you population density?

• the number of births per year

• the number of frogs in a pond

• the number of deaths per year

• the number of bacteria per square millimeter

Which of the following is NOT one of the factors that play a role in population growth rate?

• immigration

• death rate

• emigration

• demography

If immigration and emigration numbers remain equal, which is the most important contributing factor to a slowed growth rate?

• increased birthrate

• constant death rate

• decreased birthrate

• constant birthrate

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Which factor might NOT contribute to an exponential growth rate in a given population?

• lower death rates

• higher birthrates

• less competition

• reduced resources

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In a logistic growth curve, exponential growth is the phase in which the population

• reaches carrying capacity

• grows quickly

• growth begins to slow down

• growth stops

If a population grows larger than the carrying capacity of the environment, the

• death rate may rise

• birthrate may rise

• death rate must fall

• birthrate must fall

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NGSS.MS-LS2-4

NGSS.MS-LS2-1

Water lilies do not grow in desert sand because water availability to these plants in a desert is

• a limiting factor

• the carrying capacity

• a competition factor

• the logistic growth curve

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NGSS.MS-LS1-5

Which would be least likely to be affected by a density-dependent limiting factor?

• a small, scattered population

• a population with a high birthrate

• a large, dense population

• a population with a high immigration rate

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NGSS.MS-LS2-4

Which density-dependent factors other than the predator/prey relationship affected the populations of moose and wolves on Isle Royale?

• extreme temperatures for the moose and flooding for the wolves

• parasitic wasps for the wolves and clear-cut forest for the moose

• a hurricane followed by drought for both moose and wolves

• food availability for the moose and disease for the wolf

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NGSS.MS-LS2-1

Which of the following is a density-independent limiting factor?

• a struggle for food, water, space, or sunlight

• predator/prey relationships

• the eruption of a volcano

• parasitism and disease