NGSS.MS-LS2-4

In a forest ecosystem, a food chain might look like this:
green plants → rabbit → fox → panther

If the green plants are destroyed in a forest fire, which short-term effect will this have on the organisms in this food chain?

• There would be fewer rabbits for the foxes to eat. 
• The panthers would have to begin to eat green plants.
• There would be an increase in the fox population
• There would be more green plants for the rabbits to eat

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NGSS.MS-LS2-4

A species lives in a particular environment.  What is TRUE about the environment that the species lives in and about how the species will look over thousands of years?

• The environment will stay the same, and the traits of the species will stay the same.
• There will be changes to the environment, but the traits of the species will stay the same.
• There will be changes to the environment that could lead to changes in the traits of the species.
• There will be changes to the environment, and the traits of the species will change, but the changes in the environment could never lead to changes in the traits of species.

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NGSS.MS-LS2-4

Temperature of the water impacts

• what kind of organisms can live in rivers, creeks and lakes.

• the amount of dissolved oxygen.

• the amount of minerals dissolved in the water.

• all of the above

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NGSS.MS-LS2-4

Using the food web what would happen if the eagle became extinct?

• The frog population would decrease.

• The frog population would increase.

• The butterfly population would increase.

• The snake population would decrease.

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NGSS.MS-LS2-4

Biodiversity is important to keep an area (biome) healthy. In this example "Food Web A" is sustainable. Why is sustainability important for an ecosystem in "Food Web A".

• If one organism is removed the food web can still operate (work) with little or no negative effect.

• If an organism is removed the food web will collapse and will affect the environment.

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NGSS.MS-LS2-4

A deer population has significantly increased. The best hypothesis for why this has occurred is

• the deer's main predator has been eliminated

• competition increased

• decreased water levels of local ponds

• organisms that rely on similar food sources migrated to the area

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NGSS.MS-LS2-4

Who studies the effects of the environment on animal life?

• Soil Technician

• Wildlife Technician

• Wildlife Manager

• Ecologist

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NGSS.MS-LS2-4

How would excessive increases in nitrate and phosphorus concentration affect freshwater systems?

• It would cause excessive algal blooms.

• It would cause increased dissolved oxygen.

• It would cause increased water clarity.

• It would cause extremely cold water.

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NGSS.MS-LS2-4

How do oil spills affect the environment?

• They do not affect the environment.

• They have a minimal impact on the environment.

• They pollute the environment and reduce populations of organisms.

• The pollute the environment but increase populations of organisms.

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NGSS.MS-LS2-4

 Which biome is more likely to survive a change in the environment?

• High (rich) biodiversity
• Low (poor) biodiversity

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NGSS.MS-LS2-4