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

This invasive plant came from Asia and was believed to be a pretty decoration.  Unfortunately, it covers native plants and blocks sunlight from reaching them.

• Kudzu Vine
• Feral Swine
• Sea Lamprepy
• Zebra Mussels

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NGSS.MS-LS2-4

The health of an ecosystem is directly related to the:

• Air quality
• Amount of animals in the area
• Water quality
• Amount of food in the area

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NGSS.MS-LS2-4

If a large volcano that is on an island erupts, it will impact the local ecosystem.  Which of the following is NOT a way the volcano will affect the local ecosystem?

• Lava will run down from the volcano, burning down all the trees around the volcano.
• The lava from the volcano will heat up the air in the local area and kill all life in the area.
• When the volcano erupts, it will throw dust into the air affecting plants across the island.
• The lava will run into the ocean around the island, killing coral reef animals.

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NGSS.MS-LS2-4

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice
• The hawks eat more dark mice than light mice because the dark mice taste better
• The hawks eat more light mice than dark mice because they can see the light mice more easily
• The hawks eat more dark mice than light mice because they can see the dark mice more easily

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NGSS.MS-LS2-4

What was one of the negative results of the trees being cut down.

• Nothing happened because people wanted the product.

• The man made money.

• Because all of the trees were cut down the animals in the forest had to leave.

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NGSS.MS-LS2-4

Which statement is a harmful effect of clearing rain forest for farmland is?

• it removes valuable habitat for local species

• it provides more land for the farmers.

• provides income for the residents of the area.

• incrases the groundwater levels

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NGSS.MS-LS2-4

Eider ducks live in the ocean and have a layer of warm feathers underneath their regular feathers. They can have feathers of different thicknesses.

These feathers helps the ducks stay warm in cold water. Ducks with thicker feathers are more likely to stay warm and survive in cold water. But, in warm water, thicker feathers can make the ducks overheat and die.

The diagram below shows a population of ducks that live in an area of an ocean. At time 1, the population had the same number of ducks with thin and thick feather layers. At time 2, after many generations, there were many more ducks with a thin feather layer and fewer ducks in the population with a thick feather layer.

How did the environment change between time 1 and time 2? How did the population change?

• The water became warm. As a result, ducks with thin feathers were more likely to survive, so the ducks with thick feathers changed to have thin feathers.

• The water became warm. As a result, ducks with thin feathers were more likely to survive, so both kinds of ducks passed on the gene for thin feathers to their offspring.

• The water became warm. With each generation, more ducks with thin feathers survived long enough to pass on the gene for thin feathers to their offspring.

• You cannot tell how the environment changed. With each generation, more ducks passed on the gene for thin feathers to their offspring.

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NGSS.MS-LS2-4

Which of the following events is most likely to cause an environmental disturbance in a grassland biome?

• earthquake

• volcanic eruption

• hurricane

• fire caused by lightning

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NGSS.MS-LS2-4

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

• burning coal

• using ethanol in cars

• installing solar panels on a home

• generating electricity in a hydroelectric power plant

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NGSS.MS-LS2-4