What is a dominant species in an ecosystem?

Ecological Concepts and Species Impact

Interactive Video
•
Biology, Science, Geography
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A species introduced from another region.
A species that engineers new ecosystems.
A species that is on the brink of extinction.
A species that is the most abundant and whose removal could collapse the ecosystem.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do keystone species affect ecosystems?
They are introduced species that compete with native species.
They have a significant impact on population numbers and ecosystem health.
They are species that have gone extinct.
They are the most abundant species.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do beavers play in their ecosystems?
They are ecosystem engineers.
They are keystone species.
They are a dominant species.
They are alien species.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of habitat loss?
Reforestation efforts.
Overfishing of yellowfin tuna.
Deforestation and building of hydroelectric dams.
Introduction of zebra mussels.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an alien species?
A species that has gone extinct.
A species introduced to a new location, competing with native species.
A species that engineers new ecosystems.
A species that is native to an ecosystem.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What impact do zebra mussels have on the Great Lakes?
They are used in restoration ecology.
They help increase biodiversity.
They compete with native fish for food resources.
They are a keystone species.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does over-exploitation refer to?
Introducing new species to an ecosystem.
Using or extracting a resource until it is depleted.
Restoring damaged ecosystems.
Creating new ecosystems through engineering.
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