Population Dynamics Review

This graph shows the population growth curve for a sparrows in Forsyth County.  What is the carrying capacity?

• 50
• 200
• 280
• 300

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As resources in a population become less available, population growth

• declines rapidly
• increases slowly
• reaches carrying capacity
• enters a phase of exponential growth

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NGSS.HS-LS2-1

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If the death rate of a population is greater than the birthrate, the population shrinks.

• True
• False

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What type of growth model is this?

• exponential growth model
• logistic growth model
• Type I curve
• Type III curve

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Carrying Capacity is

• the capacity of what one person can carry per day 
• how many animals you have in your daily bag limit at the end of the year
• wildebeest at a watering hole with zebras
• the maximum number of individuals that the environment can support

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NGSS.HS-LS2-1

What causes competition to occur in an environment?

• Good conditions make resources plentiful.

• Organisms struggle for a limited resource.

• Members of a population have different roles.

• A population falls below the environment’s carrying capacity.

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Without other changes to a population, which of the following will cause a population to increase in size?

• The birth rate equals the death rate.

• The birth rate is less than the death rate.

• The birth rate is greater than the death rate.

• The birth rate and the death rate both equal 0.

Which of the following is an example of an abiotic limiting factor on population size?

• water availability

• Availability of food

• disease

• predation

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When individuals join a population

• Aliens
• migration
• Immigration
• Emigration

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What are two ways in which the environment can influence population size?

• competition and natural disasters
• biomes and ecosystems

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NGSS.HS-LS2-6

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