Which statement is TRUE about forest fires?

Forest fires can sometimes be beneficial for an ecosystem

Forest fires are always bad for the ecosystem

Forest fires always result in primary succession

What is primary succession?

Occurs where no ecosystem has existed.

Occurs on a surface where an ecosystem has previously existed.

Suppose there is a drought in this area. The level of the river drops because of it. What else could happen here?

The river will immediately rise again.

A place underground that stores water.

What is NOT an example of an area that is likely to undergo primary succession?

barnacle-encrusted rock is exposed on shore at low tide

volcanic eruption leaves behind hardened lava flows

glacier begins to melt to move leaving exposed rock

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

Primary begins with soil formation; secondary soil is intact

Primary is the first stage and secondary is the second stage

Primary builds plant community; secondary builds animal community

Primary after natural disaster; secondary after disturbance

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

lichens-->grasses-->shrubs-->trees

grass--> shrubs-->lichens-->trees

lichens-->shrubs-->grass-->trees

grasses-->lichens-->shrubs-->trees

Primary succession occurs in an area that has:

been colonized but recently wiped out

What is the most important function of pioneer species?

To create soil and add nutrients to the environment

Why does primary succession take longer to reach climax community?

Because primary succession does not have soil

Because trees do not perform photosyntheses.

Because climax community is in a forrest.

Because primary succession already has soil

Which is the correct order in primary succession?

Rocks, Lichens & Mosses, Bushes & Shrubs, Trees

Lichens & Mosses, Rocks, Trees, Bushes & Shrubs

Trees, Bushes and Shrubs, Lichens & Mosses, Lichens & Mosses

Rocks, Grass, Trees, Bushes & Shrubs

Which of the following is true in a climax community?

They are stable for a long time, with the same species maintaining their population

the community will constantly evolve and change

if one species dies, a new species will fulfill the same role

it goes through a major change called "climax" every few hundred years

Ecological Succession and Cycles

Authored by Charles Martinez

Biology

7th Grade

45 Questions

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MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Succession that occurs in an area with NO SOIL

ecological succession

primary succession

secondary succession

pioneer speciles

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The process of change in the living parts of the ecosystem

ecological succession

primary succession

climax community

pioneer species

The picture shows what type of succession?

primary

secondary

tertiary

quadanary

The first organisms that appear in an ecological community

ecological succession

primary succession

secondary succession

pioneer speciles

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Starts with BARE ROCK followed by lichen

primary succession

secondary succession

both types of succession

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The picture shows what type of succession?

primary

secondary

tertiary

quadanary

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Ecological Succession and Cycles

Succession that occurs in an area with NO SOIL

The process of change in the living parts of the ecosystem

The picture shows what type of succession?

The first organisms that appear in an ecological community

Starts with BARE ROCK followed by lichen

How do lichens contribute to primary succession?

The picture shows what type of succession?

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

The final stable community of plants and animals is called:

Dropping leaves in the fall is a characteristic of what type of tree?

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