Unit 11 Test

About how long would the type of succession in the diagram below take to reach a climax community?

• 100 years

• 1,000 yeasrs

• 5 years

• 200 years

Humans can cause secondary succession in all of the following ways EXCEPT:

• Not putting their camp fire and accidentally causing a wildfire

• Deforestation and intentionally clearing the forest

• Controlled burning of the forest on their land

• Hurricanes, tornadoes, and tsunamis

Which of the following catastrophic events would cause

the type of succession in the diagram below?

*starting at bare rock

• hurricane and drought

• volcano and wildfire

• volcano and glacial melt

• tornado and wildfire

Species that emerges after a disturbance

• climax community

• pioneer species

• ecological successor

T/F: Primary succession can take thousands of years

• T

• F: hundreds

T/F: Climax communities experience the MOST amount of change

• T

• F; LEAST

T/F Original pioneer species decrease overtime bc more complex soil forms

and grows new more complex plants

• T

• F; increase

Shade tolerant trees

big trees

complex plants are all examples of

• pioneer species

• intermediate species

• climax community

Mosses, lichens

(grow on bare rock)

are examples of

• pioneer species

• intermediate species

• climax community

Grasses, shrubs, small trees are examples of

• Pioneer species

• intermediate

  species

• climax community