2.3 Ecosystem Succession and Disturbances

What is the key concept of ecosystem succession?

• Ecosystems remain the same over time

• Ecosystems change over time

• Ecosystems are unpredictable

• Ecosystems are static.

What is the final community called in the process of succession?

• Pioneer Community

• Intermediate Community

• Climax Community

• Secondary Community

In secondary succession, what is already present on the surface?

• Water

• Soil

• Rocks

• Trees

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What type of plants are pioneer species in secondary succession?

• Trees

• Shrubs

• Annual flowers, grasses, and weeds

• Moss

What is the NPP of an ecosystem expected to do over time during succession?

• Decrease

• Stay the same

• Increase

• Fluctuate

Tags

NGSS.MS-LS2-3

What is a characteristic of the intertidal zone in the case study?

• Low NPP

• Constant influx of nutrients

• No changes in salinity

• No wave action.

Tags

NGSS.MS-LS2-3

What is a 'Prescribed burn'?

• A natural wildfire

• A fire set intentionally for forest management

• A fire caused by lightning

• A fire that occurs in urban areas.

Tags

NGSS.MS-LS2-3

Which of the following is a characteristic of wildfires?

• A) Frequent and severe

• B) Safely reduces underbrush

• C) Decreases germination of native vegetation

• D) Increases habitat destruction

Tags

NGSS.MS-LS2-4

What is the relationship between ecosystem diversity and species diversity?

• No relationship

• Ecosystem diversity decreases species diversity

• Ecosystem diversity directly affects species diversity

• Species diversity increases ecosystem diversity.

Tags

NGSS.MS-LS2-4

What is one way to protect ecosystems?

• Increase habitat fragmentation

• Increase biodiversity

• Increase air pollution

• Increase invasive species.

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-5