Unit 9: Ecology

Flashcard
•
Biology
•
9th - 10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is primary succession?
Back
Primary succession is the process of ecological change that occurs in an area where no soil exists, such as after a volcanic eruption or on bare rock.
2.
FLASHCARD QUESTION
Front
Where does primary succession NOT occur?
Back
Primary succession does not occur in areas like a forest burned by fire, as soil is already present.
3.
FLASHCARD QUESTION
Front
What is a trophic level?
Back
A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients from one organism to another.
4.
FLASHCARD QUESTION
Front
How does energy availability change in an energy pyramid?
Back
In an energy pyramid, available energy decreases as trophic levels increase.
5.
FLASHCARD QUESTION
Front
What are density independent limiting factors?
Back
Density independent limiting factors are environmental factors that affect populations regardless of their density, such as natural disasters and pollution.
6.
FLASHCARD QUESTION
Front
What is an example of a density dependent limiting factor?
Back
An example of a density dependent limiting factor is disease, which spreads more easily in crowded populations.
7.
FLASHCARD QUESTION
Front
What is ecological succession?
Back
Ecological succession is the process by which ecosystems change and develop over time, involving a series of stages.
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