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Ecological Succession Worksheet

Explore the processes of primary and secondary ecological succession, pioneer species, climax communities, and the factors influencing ecosystem change.

Grade 9 Science BiologyEcological Succession
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Multiple ChoiceFill in the BlanksTrue / FalseShort AnswerCustom

Standards

HS-LS2-6HS-LS2-7

Topics

Ecological SuccessionBiologyEcologyGrade 9Science
7 sections · Free to use · Printable
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Ecological Succession Worksheet

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Read each question carefully and provide thoughtful answers. Use complete sentences where appropriate.

1. Which type of succession begins in an area with no remnants of an older community, such as bare rock after a volcanic eruption?

a

Primary succession

b

Secondary succession

c

Climax succession

d

Ecological collapse

2. What are the first species to colonize a barren environment called?

a

Climax species

b

Keystone species

c

Pioneer species

d

Indicator species

3. The stable, mature community that results from ecological succession is called a  .

4. Secondary succession occurs in areas where a disturbance has removed existing vegetation but has not removed the  .

5. Lichens and mosses are examples of pioneer species in primary succession.

T

True

F

False

6. A forest fire is an example of a disturbance that leads to primary succession.

T

True

F

False

7. Briefly describe the main difference between primary and secondary succession.

8. Observe the diagram below showing different stages of ecological succession. Identify and describe what is happening in Stage 1 and Stage 4.

Ecological Succession Stages

Stage 1:

Stage 4: