What is primary succession?
Communities & Ecosystems Dynamics Review

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Biology
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
Primary succession is the process of ecological change that occurs in an area where no soil exists, such as after a volcanic eruption, leading to the establishment of a biological community.
2.
FLASHCARD QUESTION
Front
What is secondary succession?
Back
Secondary succession is the process of ecological change that occurs in an area where soil and some organisms still exist after a disturbance, such as a fire or flood.
3.
FLASHCARD QUESTION
Front
Why is biodiversity important in ecosystems?
Back
Biodiversity is important because it enhances ecosystem productivity, stability, and resilience, providing essential services such as pollination, nutrient cycling, and habitat provision.
4.
FLASHCARD QUESTION
Front
What is the competitive exclusion principle?
Back
The competitive exclusion principle states that two species competing for the same resources cannot coexist indefinitely; one will outcompete the other.
5.
FLASHCARD QUESTION
Front
What role do lichens play in primary succession?
Back
Lichens are pioneer species that help break down volcanic rock into soil, facilitating the establishment of other plant species in primary succession.
6.
FLASHCARD QUESTION
Front
What is a climax community?
Back
A climax community is a stable and mature ecological community that has reached a final stage of succession, characterized by a diverse array of species.
7.
FLASHCARD QUESTION
Front
How does a fire affect an ecosystem in terms of succession?
Back
A fire can lead to secondary succession, where the ecosystem recovers and new species establish themselves in the area after the disturbance.
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