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Unit 3.2 Analyzing Ecosystems Review
Test Description: W.E.D., Watersheds, Catastrophic events, primary and secondary succession.
Instructions: Answer all questions to get your test result.
1) What is the best explanation for why an animal would come back to an ecosystem once it has been through succession?
A
The organism will now want to come to the ecosystem and provide the resources available needed to sustain the ecosystem.
B
The organism will not want to go back to the ecosystem because it experienced a disturbance and is damaged.
C
The animal did not like where it lived before, so he decided to move.
D
Once the ecosystem has gone through succession, more resources will now begin to be available to organisms.
2) How does abundant vegetation affect erosion?
A
Vegetation will have no effect on erosion in an environment
B
Abundant vegetation will prevent erosion because the soil holds plants in place
C
abundant will hold soil and increase the amount of erosion that occurs.
D
Abundant vegetation will help prevent erosion because the roots hold soil in place
3) what type of succession takes a longer time to recover into a climax community?
A
Primary succession
B
Secondary succession
4) Why can an ecosystem going through secondary succession take a shorter amount of time to recover?
A
Secondary succession does not take a shorter amount of time compared to primary succession
B
The region has to start from scratch
C
The region has soil, so it will take a long time to recover into becoming a climax community once again.
D
The area has soil that remains making it easier for plants to begin to populate the area.
5) The process of carbonation will produce an acid which will then create landforms like:
A
caves and mountains
B
sinkholes and plateaus
C
valleys and caves
D
caves and sinkholes
6) What would happen to the water table if wells are drilled and water is being pumped out?
A
The water table will remain the same
B
The water table will drop/decrease
C
The water table will rise
7) In what way do humans affect groundwater in our watersheds?
A
human activity does not affect groundwater
B
by polluting our water source
C
by removing the water
8) Weathering is the breaking down of rock?
A
False
B
True
9) A watershed is an area of land where all water will collect into the same larger body of water.
A
True
B
False
10) Surface water is water that lies beneath the Earth's surface.
A
True
B
False
*select an answer for all questions
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