Changes in Ecosystem

What is the correct order of secondary succession?

• 1234

• 3241

• 4312

• 2134

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What has causes this aquatic ecosystem to change into a land ecosystem?

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What has changed from A to B?

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Where does primary succession start?

• on land with lots of trees and animals

• on land that was previously farmed

• on new land with little or no soil

• under the sea

What is the correct order for primary succession?

• ABCD

• BCDA

• DABC

• CDAB

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Where does secondary succession start?

• where land is new with new soil

• in areas where land has been disrupted

• in land with lots of trees and animals

• underwater

Natural disruptions to ecosystems include:

• disease

• floods

• fires

• mining

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How do humans cause disruptions in ecosystems?

• resource extraction

• deforestation

• pollution

• introducing non-native species

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

When an ecosystem is balanced, it is called:

• a climax community

• ecological succession

• dynamic equilibrium

• eutrophication

Tags

NGSS.MS-LS2-3

Which statement best describes ecosystems?

• They can never change once they are established.

• They constantly change in different ways over time.

• Ecosystems always revert back to their original state.

• Each ecosystem can exist for only a specific length of time.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4