BIO - Unit 8.7: Ecological Succession

What are examples of pioneer species in a primary succession?

• Bushes and Shrubs
• Oak trees
• Mossess and Lichens 
• A rose Bush

A pioneer species is...

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

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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 

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A large tree forest is an example of ...

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

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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

Put the stages of primary succession into the correct order from left to right.

• Rocks

• Lichen & Mosses

• Trees

• Bushes & Shrubs

First species to arrive in an area

• invasive species
• abiotic components
• pioneer species
• parasites

The picture shows what type of succession?

• primary
• secondary
• tertiary
• quadanary

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After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?

• Lichens → Shrubs → Grasses → Trees
• Lichens → tree → shrubs→Grasses
• Grasses → Lichens → Shrubs → Trees
• Lichens → Grasses → Shrubs → Trees

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The following natural events will cause primary succession to occur:

• floods and hurricanes
• wildfires and controlled burns
• tsunamis and tornadoes
• glacier movement and volcanoes

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