DOL Primary 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
• Lichens convert carbohydrates into fossil fuels.

Which catastrophic event will most likely have the effect of returning an ecosystem to primary succession?

• A tornado
• A volcanic eruption
• A flood
• A drought

What type of succession is this?

• Primary succession

• Tertiary succession

• Secondary succession

• Variable succession

What is the term that describes a steady and stable community?

• peak community

• turf community

• climax community

• disturbed community

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

What is primary succession?

• The recovery of an ecosystem after a disturbance

• The initial establishment of an ecosystem where none existed before

• The seasonal change in ecosystems

• The migration of species from one biome to another

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

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

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

• Lichens → Shrubs → Grasses → Trees
• Shrubs → Trees → Grasses → Lichens
• Grasses → Lichens → Shrubs → Trees
• Lichens → Grasses → Shrubs → Trees

Tags

NGSS.MS-LS2-3

Which of the following is NOT a pioneer species?

• Shrubs

• Lichen

• Mosses

• Fungi

Place the following stages in the correct order from early to late succession.

• Grasses and small plants

• Shrubs

• Climax community

• Large variety of trees/bushes

• Lichens

Tags

NGSS.MS-LS2-1