NC Check in Science Practice

Which best describes a method of obtaining energy that may cause changes in water temperature and harm to fish populations?

• burning coal

• using ethanol cars

• installing solar panels on a home

• generating electricity in a hydroelectric power plant

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NGSS.MS-LS2-4

Which is a nonrenewable resource?

• Oil

• sunlight

• water

• wood

How would a large increase in the salinity of an estuary most likely affect the ecosystem of the estuary?

• All organisms will die

• all organisms would continue to live as they do now

• The number of salt-tolerant organisms would increase, and the number of salt-intolerant organisms would decrease

• The number of salt-tolerant organisms would increase, and the number of salt-tolerant organisms would decrease

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A geologist identifies the identical index fossils in rock layers from two different areas. Which conclusion is best supported by this discovery?

• The deposition rate of the two rock layers was identical

• The fossil organism evolved independently in the two separate areas

• The two rock layers were deposited at approximately the same time

• The index fossil will also occur in sediment deposited on top of these rock layers

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NGSS.MS-ESS1-4

Which supports the theory that some mountains were once at the bottom of an ocean?

• There are underwater mountains on the ocean floor today.

• Freshwater rivers flow to the ocean.

• Fossils of marine organisms are found on the tops of some mountains

• Both mountains and ocean floors have similar minerals in their rocks.

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NGSS.MS-ESS2-3

Which disease is caused by a fungal infection

• intestinal worms

• influenza

• chicken pox

• athlete's foot

How are mutualism and parasitism different?

• Both organisms benefit in mutualism, while in parasitism only one organism benefits at the other’s expense.

• Both organisms benefit in parasitism, while in mutualism only one organism benefits at the other’s expense.

• Both organisms benefit in mutualism, while in parasitism one organism benefits, and the other is neither harmed nor benefits.

• Both organisms benefit in parasitism, while in mutualism one organism benefits, and the other is neither harmed nor benefits.

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NGSS.MS-LS2-2

How are pandemics different than epidemics?

• Pandemics affect blood; epidemics affect skin

• Pandemics affect many countries or states; an epidemic is more localized.

• Pandemics are caused by bacteria; epidemics are caused by viruses

• Pandemics are spread through the air; epidemics are spread through the water.

What would have the greatest long-term impact on reducing the amount of carbon dioxide in the air?

• planting trees around a farm

• cutting down trees around a farm

• increasing the number of livestock on a farm

• decreasing the number of livestock on a farm

Which evidence supports the idea that life on Earth has continually evolved?

• evidence from layers of tree rings

• evidence from rock layers, fossils, and ice cores

• evidence gathered from melting glaciers

• evidence that the climate has changed over the past 100 years

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NGSS.MS-LS4-1