Ecological Succession

What is the difference between primary and secondary succession?

• Primary succession already has soil.
• Primary has soil and secondary does not
• soil is present in both
• primary has no soil and secondary has soil

Which is the correct order in primary succession?

• Rocks, Lichens & Mosses, Bushes & Shrubs, Trees
• Lichens & Mosses, Rocks, Trees, Bushes & Shrubs 
• Trees, Bushes and Shrubs, Lichens & Mosses, Lichens & Mosses
• Rocks, Grass, Trees, Bushes & Shrubs

Why does primary succession take longer to reach climax community?

• Because trees do not perform photosyntheses.
• Because climax community is in a forrest.
• Because primary succession already has soil
• Because primary succession does not have soil

What is the most important function of pioneer species?

• To create rocks
• To create soil and add nutrients to the environment 
• To look nice
• Food for animals 

After a volcanic eruption the lava cools and becomes rock. Which succession must take place in order for vegetation (plants) to return?

• Primary Succession

• Secondary Succession

During a forest fire most vegetation (plants) burn. Which ecological succession will take place after a forest fire?

• Primary

• Secondary

What is the order of succession shown in this figure?

• A, B, C, D
• B, A, D, C
• C, D, A, B
• D, A, B, C

The picture shows what type of succession?

• primary

• secondary

• tertiary

• quaternary

What are examples of pioneer species in a primary succession?

• Bushes and Shrubs

• Oak trees

• Mosses and Lichens

• A rose Bush

Final illustration (#8) shows a

• pioneer species
• climax community
• only biotic factors
• only abiotic factors