
Unit 7 Review
Quiz
•
Science
•
7th Grade
•
Medium
Veronica Soliz
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An ecosystem is generally healthy if—
wildfires do not occur.
its soil includes a variety of rock types.
it rains a lot.
its species diversity is relatively high.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An abundant, ground-dwelling, sun-loving plant species becomes a rare find within 20 years. Why might that be?
It transformed into a completely new species.
It could no longer take the heat.
Plant hunters harvested all of them.
Other plants, such as shrubs and trees, may be blocking most sunlight.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A relatively stable state of succession, or the end product of succession
Biome
Ecosystem
Climax Community
Biodiversity
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A homeowner cuts down all of the trees on his lot, except for his favorite tree, the birch. What might happen?
He will have more open views.
Fewer insects will live on his lot.
Fewer bird species will live on his lot.
All of these
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Capable of maintaining the current community at a steady level without exhausting natural resources or causing severe ecological damage
Sustainable
Ecosystem
Habitat
Climax Community
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A change in types of species present in a community over time such as after a disturbance
Biodiversity
Succession
Ecosystem
Climax community
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the process of ecological succession, grasses appear before shrubs because grasses -
loosen the dirt for new trees to take root.
provide food for animals returning to the area.
can grow rapidly even in areas with shallow soil.
require plenty of sunlight to make their own food.
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