Podcast
Questions and Answers
Where is the primary source of usable carbon for plants in the carbon cycle?
Where is the primary source of usable carbon for plants in the carbon cycle?
- Soil
- Other living organisms
- Atmosphere (correct)
- Water bodies
What distinguishes the carbon cycle from the nitrogen and phosphorus cycles?
What distinguishes the carbon cycle from the nitrogen and phosphorus cycles?
- Direct consumption by living organisms
- Primary role in energy storage
- Global nature due to carbon dioxide being a gas (correct)
- Local dependency on soil concentrations
How do changes in local concentrations of usable nitrogen and phosphorus affect ecosystems compared to changes in the carbon cycle?
How do changes in local concentrations of usable nitrogen and phosphorus affect ecosystems compared to changes in the carbon cycle?
- Global consequences
- No impact on ecosystems
- More localized consequences (correct)
- Minimal effects on living organisms
What is the primary role of carbon in living organisms?
What is the primary role of carbon in living organisms?
How do consumers primarily obtain carbon for their needs?
How do consumers primarily obtain carbon for their needs?
What process do autotrophs use to convert light energy into chemical energy?
What process do autotrophs use to convert light energy into chemical energy?
How do plants return a lot of the carbon back into the atmosphere?
How do plants return a lot of the carbon back into the atmosphere?
Where is the largest pool of carbon in the world located?
Where is the largest pool of carbon in the world located?
What is the main way detritivores release carbon back into the air?
What is the main way detritivores release carbon back into the air?
What role do wildfires play in the global carbon cycle?
What role do wildfires play in the global carbon cycle?
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