Ecology - Succession

Which of the following best describes primary succession?

• Volcano wipes out ecosystem that gradually grows back from ash covered soil

• Volcano creates a new island of rock that must break down to form an ecosystem

• Forest fire burns down forest that must bounce back over time

• Tornado destroys a crop that must slowly grow back over time.

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

How do pioneer species compare in primary and secondary succession?

• primary starts with grass and weeds, secondary starts with mosses

• primary starts with forest fire, secondary starts with volcano

• primary starts with a volcano, secondary starts with a forest fire

• Lichens and moss in primary, and grasses/ ferns in secondary

Primary succession occurs in areas with:

• very little soil

• lots of soil

• no soil

• soil that has been disturbed

succession that occurs in an area where soil is already present

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

the first organisms that appear in an ecological community

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

a stable ecological community that has reached equilibrium

• ecological succession 
• climax community
• secondary succession
• pioneer speciles

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

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

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

• Lichens → Mosses → Shrubs → Grasses → Trees

• Lichens → tree → shrubs→Grasses

• Grasses → Lichens → Shrubs → Trees

• Lichens → Mosses → Grasses → Shrubs → Trees

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-2

Which one?

• Primary Succession

• Secondary Succession