Succession

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

Natural disasters such as flooding and tornadoes are linked to ________________.

• primary
• secondary
• old field
• ecosystem

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

The picture shows what type of succession?

• primary
• secondary
• tertiary
• quadanary

reaches a climax community quicker because soil is already present

• primary succession 
• secondary succession
• both types of succession

starts with bare rock followed by lichen

• primary succession 
• secondary succession
• both types of succession

a stable ecological community that has reached equilibrium

• ecological succession 
• climax community
• secondary succession
• pioneer species

the first organisms that appear in an ecological community

• ecological succession 
• primary succession 
• secondary succession
• pioneer species

succession that occurs in an area where soil is already present

• ecological succession 
• primary succession 
• secondary succession
• pioneer species

succession that occurs in an area with no soil

• ecological succession 
• primary succession 
• secondary succession
• pioneer species