8.1 How Populations Change in Size

If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population?

• It will increase.
• It will decrease.
• It will stay the same.
• It will fluctuate.

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NGSS.HS-LS2-6

If the number of births is greater than the number of deaths in a population, what will happen to the growth of the population?

• It will increase.
• It will decrease.
• It will stay the same.
• It will fluctuate.

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NGSS.HS-LS2-6

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Largest number of individuals of a population that the environment can support...  

• carrying capacity
• population crash
• lag phase
• mutualism

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What do you call a period of rapid growth?

• exponential growth
• logistic growth
• emigration
• predator-prey cycle

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What point on the graph represents the carrying capacity?

• A
• B
• C
• D

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Will competition increase/decrease the carrying capacity of an ecosystem for the animal in competition?

• Decrease
• Increase

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When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

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If the amount of food or resources available increases, the carrying capacity for an animal:

• Stays the same
• Increases
• Decreases
• Fluctuates

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

The largest number of individuals in a species that an environment can support long term

• carrying capacity
• emigration
• immigration
• population density

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The number of deaths compared to the total number of people in a population

• death rate
• doubling time
• population decline
• birth rate