SC.7.L.17.3 Quiz

Grace is investigating competition in a woodland ecosystem. She created this food web to show her observations. Which of the behaviors that she observed may lead to competition?

• Blue birds and lizards eat worms.

• Blue birds eat grass, snails, and worms.

• Eagles eat rabbits, blue birds, and lizards.

• Rabbits eat only grass.

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In every ecosystem, some resources are limited while others are abundant. Organisms must compete for limited resources but do not need to compete for resources that are abundant. Which of the following is not a resource that organisms would normally compete for?

• air

• food

• shelter

• water

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NGSS.MS-LS2-1

What is the carrying capacity of the graph?

• around 500
• more than 500
• less than 500
• around 600

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What is the carrying capacity of the following graph?

• 1000
• 8000
• 800
• 600

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NGSS.MS-LS2-1

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The total number of individuals a habitat can survive with the resources it has available.

• Carrying capacity
• Limiting factors
• Resources
• Population

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Check all of the boxes that show examples of biotic factors.

• Rain

• Humans hunting

• Predators

• Wildfire

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Check all of the boxes that are examples of abiotic factors.

• Prey

• Rainfall

• A pack of wolves

• A tornado

If there was a wildfire in the forest that destroyed the plant life, what would happen to the herbivore population?

• Herbivores would decrease due to a lack of food

• Herbivores would increase due to an increase of food

• Herbivores would not be affected

• Herbivores would decrease due to an increase in predators

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NGSS.MS-LS2-1

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What happens if a population goes over its carrying capacity?

• It will continue to grow

• It will eventually decrease due to a lack of resources

• It will die immediately

• It will get unlimited resources

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Which of the following would lead to a decrease in tertiary consumers?

• An increase in herbivores and omnivores

• An increase in rain

• A decrease in competition

• A new carnivore population moving to the area

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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