Lesson 3: Changes in Ecosystems

Flashcard
•
Biology
•
6th Grade
•
Hard
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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 glacier retreat.
2.
FLASHCARD QUESTION
Front
What is secondary succession?
Back
Secondary succession is the process of ecological change that occurs in an area where a disturbance has destroyed an existing ecosystem but soil and some organisms still remain.
3.
FLASHCARD QUESTION
Front
What are pioneer species?
Back
Pioneer species are the first organisms to colonize an uninhabited area, helping to create soil and conditions for other species.
4.
FLASHCARD QUESTION
Front
What is a climax community?
Back
A climax community is a stable and mature ecosystem that has reached a steady state, dominated by climax species.
5.
FLASHCARD QUESTION
Front
What is eutrophication?
Back
Eutrophication is the process in which organic matter and nutrients build up in a body of water, potentially leading to excessive plant growth and oxygen depletion.
6.
FLASHCARD QUESTION
Front
How does biodiversity benefit an ecosystem?
Back
Biodiversity helps communities remain stable by providing a variety of species that can adapt to changes and support ecosystem functions.
7.
FLASHCARD QUESTION
Front
What are climax species?
Back
Climax species are the dominant species in a climax community, adapted to the local environment and capable of reproducing successfully.
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