Podcast
Questions and Answers
What is the critical role of saprotrophs in an ecosystem?
What is the critical role of saprotrophs in an ecosystem?
- They form symbiotic relationships with plants to fix atmospheric nitrogen.
- They convert light energy into chemical energy through photosynthesis.
- They consume primary producers, thus controlling the population size of autotrophs.
- They decompose dead organic material, releasing nutrients back into the ecosystem. (correct)
How does the increasing concentration of atmospheric carbon dioxide contribute to the acidification of oceans?
How does the increasing concentration of atmospheric carbon dioxide contribute to the acidification of oceans?
- It leads to the formation of carbonic acid, which lowers the ocean's pH.
- It accelerates the dissolution of calcium carbonate shells and coral skeletons.
- It causes a decrease in the concentration of carbonate ions, which are essential for shell formation.
- All of the above. (correct)
Which statement accurately describes a potential consequence of deforestation on the water cycle?
Which statement accurately describes a potential consequence of deforestation on the water cycle?
- Reduced soil erosion due to the intact root systems of remaining trees.
- Increased evapotranspiration, leading to higher local precipitation rates.
- Decreased surface runoff and increased infiltration, replenishing groundwater reserves.
- Diminished carbon sequestration, exacerbating climate change impacts on regional rainfall patterns. (correct)
What is the most significant implication of rising global temperatures on species distribution?
What is the most significant implication of rising global temperatures on species distribution?
How do keystone species impact community structure?
How do keystone species impact community structure?
Which of the following represents a critical consequence of permafrost thawing in Arctic ecosystems?
Which of the following represents a critical consequence of permafrost thawing in Arctic ecosystems?
What is the role of methanogens in carbon cycling?
What is the role of methanogens in carbon cycling?
How does ocean acidification impact marine food webs?
How does ocean acidification impact marine food webs?
Which of the following is the most comprehensive approach to mitigating climate change?
Which of the following is the most comprehensive approach to mitigating climate change?
What are the implications of thermal expansion of ocean water due to global warming?
What are the implications of thermal expansion of ocean water due to global warming?
Flashcards
Ecology
Ecology
The study of the relationships between living organisms and their environment.
Species
Species
A group of organisms that can interbreed and produce fertile offspring.
Community
Community
A group of interacting populations of different species living in the same habitat.
Ecosystem
Ecosystem
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Energy Flow
Energy Flow
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Carbon Cycling
Carbon Cycling
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Climate Change
Climate Change
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Study Notes
- Topic 4 focuses on Ecology.
4.1 Species, Communities and Ecosystems
- Covers topics related to species, communities, and ecosystems.
4.2 Energy Flow
- Discusses the flow of energy within ecological systems.
4.3 Carbon Cycling
- Focuses on the processes involved in the carbon cycle.
4.4 Climate Change
- Addresses the topic of climate change and its effects.
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