Primary and Secondary Succession

succession that occurs in an area with no soil

• ecological succession 

• primary succession 

• secondary succession

• pioneer speciles

starts with bare rock followed by lichen

• primary succession 

• secondary succession

• both types of succession

reaches a climax community quicker because soil is already present

• primary succession 

• secondary succession

• both types of succession

How do lichens contribute to primary succession?

• Lichens decompose organic matter from animals and plants

• Lichens begin to break down rock to form soil

• Lichens are nitrogen fixing bacteria

Tags

NGSS.MS-LS2-2

Breaking News! A new island has formed off of Hawaii! What must occur for it to become an ecosystem?

• Secondary Succession

• Aquatic succession

• Primary Succession

• Ferns must grow

Primary succession occurs in areas with:

• very little soil

• lots of soil

• no soil

• soil that has been disturbed

Why do grasses appear before shrubs in ecological succession?

• loosen the dirt for new trees to take roots?

• provide food for animals returning to the area

• require plenty of sunlight to make their own food

• can grow even in areas with shallow soil

What is the name given to lichen or algae after a primary succession?

• pioneer species

• volunteer species

• founder species

• conqueror species

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

Tags

NGSS.MS-LS2-3

succession that occurs in an area where soil is already present

• ecological succession 

• primary succession 

• secondary succession

• pioneer speciles