Ecological Succession

Primary succession occurs in an area that has:

• soil

• no soil

• some soil

• none of these

What is ecological succession?

• A slow change in an environment
• A change that takes days in an environment
• No change
• Abiotic change

A pioneer species is...

• a large organism
• the first organisms to adapt to a new environment 
• The best organism 
• Abiotic organisms 

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

A large tree forest is an example of ...

• a small community
• a abiotic community
• a climax community
• a pioneer species 

Climax communities are always large forests. (Hint; think of a desert environment) 

• True 
• False

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