Changing Ecosystem

Which of the following would have a negative impact on an ecosystem ???

• Constructing highways

• Planting trees

• Recycling paper

• Children playing with butterflies

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

Raccoons eat aquatic animals. If chemicals entered the lake with rain water and destroyed the plants, how would this impact the raccoon population?

• Raccoons would have more aquatic animals to eat.

• Raccoons would begin eating land plants.

• Raccoons would have less aquatic animals to eat.

• Raccoons would only drink water.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Why would algae grow in a lake?

• Because the lake is polluted

• The lake is a newly created ecosystem

• Because there are a lot of fish in the lake

• A natural disaster destroyed the lake

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

NGSS.MS-LS2-1

NGSS.MS-LS1-5

NGSS.MS-LS1-6

How does human activity cause disruptions in ecosystems. Circle all that apply:

• Eutrophication

• Resource Extraction

• Pollution

• Nonnative Species

Tags

NGSS.HS-ESS3-4

NGSS.HS-LS2-7

In an ecosystem, there are populations of moose, rabbits, grass, and pine trees. Suddenly, a fire blazes through the area, which kills all of the populations. As the months go on, new species of grass begin to take root. This attracts animals, and eventually the ecosystem is restored.

What type of ecological succession happened?

• Primary succession

• Secondary succession

• Tertiary succession

• None of the above

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-3

Ecological succession can begin when seeds are carried to bare areas by birds or the wind.

• True

• False

If an existing ecosystem is destroyed, ________.

• primary succession occurs

• secondary succession occurs

• a climax community comes into existence

• a different type of biome emerges

Tags

NGSS.MS-LS2-3

What is the difference between primary succession and secondary succession?

(a)  

Tags

NGSS.MS-LS2-4

You play baseball in a field at the park where the grass is mowed all summer. What type of succession would occur if no one mowed the grass at all?

• Primary succession

• Secondary succession

A pasture gradually returns to a forested state. This is secondary succession.

• True

• False