Carrying Capacity

What is the carrying capacity of the graph?

• 1000

• 8000

• 800

• 600

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What is the carrying capacity of the graph?

• around 500

• more than 800

• less than 300

• around 700

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Which of the following would INCREASE the carrying capacity of an ecosystem?

• increase in predators
• disease
• increase in available food
• drought

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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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If the carrying capacity of a predator decreases, what will happen to the carrying capacity of the prey?

• Will Increase

• Will Decrease

• Will stay the same

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The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?

• It will decrease.

• It will increase.

• It will remain the same.

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In a forest ecosystem, which of the following is NOT an example of a limiting factor that would greatly affect a rabbit population?

• a rainy season

• a disease that causes rabbits to die

• grass available to eat

• the population of hawks that eat rabbits

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The picture to the right represents a sunny, dry desert.

Which factor most likely limits the desert’s carrying

capacity for plant life?

• the number of animals that eat plants

• the amount of sunlight

• the availability of space to grow

• the availability of water

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In a large Maine forest with many animals and lots of space, there are only a small number of bears. Which of these most likely limits the population of bears in the forest?

• cloud cover in the atmosphere

• space

• supply of food

• types of trees in the area

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A population of salamanders that live in a river require clear, fresh water to survive. New housing developments have caused tons of sediment to muddy the river. Which

of these most likely will happen to the salamander population?

• The salamanders go live on land.

• The salamanders will move across land to another river.

• The salamanders will quickly adapt to living in the muddy water.

• The salamanders will decrease in number because of the water quality.

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