
Review 7th 4th 4 Weeks
Authored by Deborah Turner
Science
7th Grade
Used 8+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A glacier cuts into a mountain and leaves bare rocks. Lichens begin to live on the rocks. The lichens produce an acid that starts to break down the rocks. What effect will this have on the enviroment?
It will put acid into the lakes and ponds.
It will begin the process of making soil.
It will prevent the carbon cycle from occurring
It will prevent bacteria from invading the ecosystem.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it difficult to create a terrarium ecosystem that will last a long time without human help?
Terrarium ecosystems cannot get enough sunlight.
Terrarium ecosystems cannot get enough water.
Ecosystems with few species are weak and unstable.
All ecosystems require humans to manage them.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A hurrican hits a coastal prairie and destroys the habitat. Years later, small plants appear that have rapidly spreading roots.
This vegetation describes:
biodiversity
secondary succession
primary succession
a microhabitat
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following sequences most likely represents ecological succession a recently abandoned wheat field?
native trees>shrubs>flowering plants>grasses
shrubs>grasses>native trees>flowering plants
flowering plants>native trees>shrubs.grasses
grasses>flowering plants>shrubs>native trees
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The role of a pioneer species in primary succession is to change a bare habitat into one that is suitable for other ecosystems. A species that is responsible for primary succession in an ecosystem is most likely able to -
live at high altitudes
carry out photosynthesis
migrate during winter
survive any predator
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between ecological succession and equilibrium in an ecosystem?
Ecological succession leads to equilibrium in an ecosystem.
Ecological successin prevents ecosystems from ever reaching equilibrium.
There is no relationship between ecological succession and equilibrium.
Ecological succession and equilibrium are the same thing.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Deer provide food for wolves. How does this relationship also benefit the herd of deer?
by protecting the deer from disease
by decreasing diversity within the herd
by controlling the deer population
by protecting deer from other predators
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