ecological succession

Primary succession occurs in an area that has:

• Has Soil

• Has No Soil

• Has Some Soil

• none of these

___ are the first organisms to colonize an area and begin the process of ecological succession.

• foundational organisms

• introductory organisms

• primary organisms

• pioneer species

What is the main difference between primary and secondary ecological succession?

• Primary begins WITHOUT soil; Secondary begins WITH soil

• Primary is the first state and secondary is the second stage

• Primary builds plant community; secondary builds animal community.

• Primary begins WITH soil; Secondary begins WITHOUT soil

What is an example of an area that is likely to undergo primary succession?

• Glaciers melt and leave exposed rock

• Plants die from drought and decompose

• Land is bulldozed and soil remains

Which of the following is the correct order of ecological succession?

• grass - shrubs - lichens - trees

• lichens - shrubs - grasses - trees

• lichens - grasses - shrubs - trees

• grasses - lichens - shrubs - trees

What are examples of pioneer species in a primary succession?

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

Tags

NGSS.MS-LS2-3

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-ESS2-2

NGSS.MS-LS2-4

In which type of succession is soil is already present?

• primary succession 
• secondary succession
• both types of succession

What is the first species you will see after a primary succession?

• lichens
• grasses
• small plants

What does the final picture (#8) show?

• pioneer species
• a climax community
• only biotic factors
• only abiotic factors

Tags

NGSS.MS-LS2-3