A

• A

• B

• C

• D

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NGSS.MS-LS2-4

If global climate change leads to the elimination of snow in the habitat of white-tailed ptarmigans, which adaptation is most likely to occur over many generations?

• Birds with white feathers in areas without winter snow will be easier for predators to find. Over time this could lead to white-tailed ptarmigans that have brown feathers throughout the year.

• Birds with brown feathers in areas without winter snow will be easier for predators to find. Over time this could lead to white-tailed ptarmigans that have white feathers throughout the year.

• Birds with white feathers will be easier to see on the ground in the summer. Over time this could lead to white-ptarmigans that have white feathers throughout the year.

• Birds with brown feathers will be easier to see on the ground in the winter. Over time this could lead to white-tailed ptarmigans that have brown feathers throughout the year.

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NGSS.MS-LS1-5

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NGSS.MS-LS4-4

Scientists are studying the effects of climate change on the Baltic Sea. Some scientists predict that if current trends continue, the Baltic Sea will become less salty, and it will contain less dissolved oxygen. As a result of these changes, the Baltic Sea will have less biodiversity. Which statement best explains why biodiversity of the Baltic Sea could decrease if these changes occur?

• Fewer types of plants and animals are found in warm water than in cool water.

• Plants and animals adapted for living in saltwater will grow more slowly in water that has less salt.

• Plants and animals adapated for living in saltier conditions will not be able to survive and reproduce.

• Animals adapted for living in warm water will eat all the plants and animals adapted for living in cool water.

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

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• The soot-covered trees camouflaged the dark moths
• The dark moths prey on the light moths
• Bird populations increased in the area near the factories
• The dark moths laid fewer eggs than the light moths

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NGSS.MS-LS2-4

NGSS.MS-LS3-1

NGSS.MS-LS4-4

• A
• B
• C
• D

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NGSS.MS-LS2-4

• F
• G
• H
• J

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NGSS.MS-LS2-4

NGSS.MS-LS4-4

• A
• B
• C
• D

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NGSS.MS-LS2-1

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-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Every spring, ecologists record several environmental measures and are looking for a relationship to the deer population in a park. Using her data, what generalization can you make?

• The deer population decreases with sudden spikes in temp.

• Deer are dependent on grass growing with ample rainfall

• Deer do not adapt well in cooler environments

• There was significantly more hunting in 2011

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8.11B

Using the chart, what would most likely happen if this specific ocean location was overfished by humans?

• Decrease in the activity of marine worms

• Decrease in the amount of algae

• Decrease in the available energy of the sun

• Increase in shark population

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8.11B