Leap Review

Frederick is studying how ecological succession will change a freshly-plowed piece of land. Which data table represents what Frederick is most likely to record about the plant life in each stage of ecological succession?

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The picture shows where oranges are grown in the United States. Oranges require a very long growing season with mild to hot weather.What is the most likely reason many of the oranges are grown in California?

• There are more organisms that eat oranges in California than in any other states.

• California has a climate that creates a good environment for growing oranges.

• Oranges will only grow in states on the coast with environments near water.

• Oranges will only grow in sandy soil that few of the other states have.

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NGSS.MS-ESS2-6

An ecosystem's sustainability is most dependent on?

• warm temperatures.

• the amount of water there.

• having a large number of a single plant species.

• the number and variety of organisms that live there.

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NGSS.MS-LS2-3

NGSS.MS-LS2-5

Which ecosystem would most likely survive if the grasses were destroyed by a plant virus?

• Ecosystem 2, because there are not many predators.

• Ecosystem 2, because the grasses could grow back quickly.

• Ecosystem 1, because there is a variety of producers that support the ecosystem

• Ecosystem 1, because there are fewer primary consumers.

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

An example of a decomposer is a(n)

• Fungi

• Fox

• Rabbit

• Grass

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NGSS.MS-LS2-3

Which of these human activities will help to improve air quality?

• Planting Trees

• Burning Trash

• Installing Windmills

• Burning fossil fuels

Gas exchange in the body occurs in which system?

• respiratory

• nervous

• immune

• muscular

What level of organization is this?

• cell

• tissue

• organ

• organ system

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NGSS.MS-LS1-3

a group of organ systems working together form __________________________

• an organ

• an organism

• an organ system

• a cell

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NGSS.MS-LS1-3

According to the Law of Conservation of Mass,

• matter is always created in a chemical reaction

• matter is always destroyed in a chemical reaction

• matter is created and then destroyed in a chemical reaction

• matter is not created or destroyed in a chemical reaction

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NGSS.MS-PS1-5