Population Ecology

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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What point on the graph represents the carrying capacity?

• A
• B
• C
• D

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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NGSS.MS-LS2-1

NGSS.MS-LS2-4

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

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Any thing or organism that regulates the size of a population is known as __________.

• a density measure
• a limiting resource
• carrying capacity
• biodiversity

Limiting resources are sometimes helpful because they can keep the population from getting to large.

• True
• False

What type of growth is shown in the diagram?

• exponential growth
• logistic growth 
• predator-prey cycle
• boom-bust curve

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?

• The bird population would stay the same
• The bird population would infinitely increase
• The bird population would decrease

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Plants and animals that are not native to a habitat and will likely show exponential growth

• predators
• biological magnification
• invasive species
• prey

What type of growth curve is pictured?

• exponential 
• logistic
• predator-prey
• invasive