What is eutrophication?
Human Impact on Ecosystems

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•
Biology
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Eutrophication is the process by which water bodies become overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen, which can harm aquatic life.
2.
FLASHCARD QUESTION
Front
What is the main cause of eutrophication in aquatic ecosystems?
Back
The main cause of eutrophication is the increase in nutrient runoff, particularly from fertilizers used in agriculture, especially after heavy rains.
3.
FLASHCARD QUESTION
Front
How do invasive species affect native ecosystems?
Back
Invasive species can damage native ecosystems by competing with native species for resources, altering plant communities, and reducing biodiversity.
4.
FLASHCARD QUESTION
Front
What are the main human activities that lead to loss of biodiversity?
Back
Habitat destruction, pollution, and over-fishing/over-hunting are the main human activities that contribute to the loss of biodiversity.
5.
FLASHCARD QUESTION
Front
What is a keystone species?
Back
A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance, playing a critical role in maintaining the structure of an ecological community.
6.
FLASHCARD QUESTION
Front
What happens when a keystone species is removed from an ecosystem?
Back
The removal of a keystone species can lead to significant changes in the ecosystem, often resulting in instability and loss of biodiversity.
7.
FLASHCARD QUESTION
Front
What does it mean that ecosystems are interconnected?
Back
Ecosystems are interconnected means that changes in one ecosystem can affect others, as species and resources move between them, and human actions can have far-reaching impacts.
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