NGSS.MS-LS2-4

Prairie dogs rely on underground tunnels for shelter. Which bestexplains how the prairie dog population is affected when their tunnels are disrupted and exposed?

• The prairie dogs are burned by the sun.
• The prairie dogs are exposed to predators
• The prairie dogs can find more food to eat in the fields
• The prairie dogs are forced to learn to live in trees and shrubs

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NGSS.MS-LS2-4

When an ecosystem is affected by loss of shelter, what happens to the populations in that ecosystem?

• They can decrease or die out
• They are usually not affected
• They can readily adapt to the changes
• The populations increase

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NGSS.MS-LS2-4

 Our beaches in Florida are lined with large hotels and condominiums. Natural vegetation was cleared away from the beaches to make room for the buildings. What is a consequence that we have seen on Florida beaches as a result of clearing the vegetation for building?

• There is less food from the vegetation to feed the citizens of Florida
• There is more and more erosion of the beaches in Florida
• The fishing is not as abundant as it once was in Florida
• The sand is heating up at record levels on our beach

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NGSS.MS-LS2-4

Widespread deforestation is a major factor in causing which ecological process?

• famine
• erosion
• monsoons
• tornadoes

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NGSS.MS-LS2-4

In 2005, the government of Brazil released information showing that over 10,000 square miles of the Amazon rain forest had been destroyed. Cattle ranching is the leading cause of deforestation reported by the Brazilian government. What will most likely be the immediate result of deforestation in the Amazon rain forest?

• a decrease in the use of alternative energy

• an increase in biodiversity in the region

• a decrease in the rate of soil erosion

• an increase in atmospheric carbon dioxide

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NGSS.MS-LS2-4

What did the humming-fish have to leave?

• their gills were all gummed from pollution

• they forgot the words to their songs

• they couldn't breath because of smog

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NGSS.MS-LS2-4

Insecticides are sprayed over a large area in an effort to reduce the number of grasshoppers that are eating the corn plants. How will this change affect this food chain? 

• The number of grasshoppers will increase
• The number of lizards will increase
• The number of lizards and hawks will decrease
• The number of grasshoppers, lizards, and hawks will decrease

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NGSS.MS-LS2-4

Cutting down large forests (deforestation) can result in:

• little to no changes

• more homes for animals

• less plants to absorb carbon dioxide, a greenhouse gas

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NGSS.MS-LS2-4

The milkweed plant serves an important role in the life cycle of the monarch butterfly. Adult monarchs lay their eggs on milkweed, and then caterpillars eat that same plant during their development. Based on the relationship between monarchs and milkweed, which of the following trends would be predicted when looking at data on the populations of these two organisms?

• A decrease in the milkweed population will cause a decrease in the monarch butterfly population.

• When the milkweed population decreases, the monarch butterfly population stays the same.

• A decrease in the milkweed population will cause the monarch population to increase.

• When the monarch population increases, the milkweed population stays the same.

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NGSS.MS-LS2-4

Which would a drought (not raining for long period) most likely affect?

• all organisms in a particular ecosystem

• only the plants in a particular ecosytem

• only the animals in a particular ecosystem

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NGSS.MS-LS2-4