Podcast
Questions and Answers
What is the primary source of usable carbon for plants in the carbon cycle?
What is the primary source of usable carbon for plants in the carbon cycle?
- Phosphorus in the soil
- Nitrogen in the atmosphere
- Carbon in the soil
- Carbon dioxide in the atmosphere (correct)
How does the global nature of the carbon cycle differ from the nitrogen and phosphorus cycles?
How does the global nature of the carbon cycle differ from the nitrogen and phosphorus cycles?
- The carbon cycle depends on local concentrations of usable carbon.
- The nitrogen cycle is global while the phosphorus cycle is local.
- The phosphorus cycle is truly global while the nitrogen cycle is local.
- The carbon cycle is truly global due to carbon dioxide's ability to move through air and water. (correct)
Which element is primarily used by living organisms as the main means of energy storage, transfer, and usage?
Which element is primarily used by living organisms as the main means of energy storage, transfer, and usage?
- Phosphorus
- Oxygen
- Carbon (correct)
- Nitrogen
What happens to local ecosystems if there are changes in the local concentrations of usable nitrogen and phosphorus?
What happens to local ecosystems if there are changes in the local concentrations of usable nitrogen and phosphorus?
Why do consumers get their carbon from eating other organisms in the carbon cycle?
Why do consumers get their carbon from eating other organisms in the carbon cycle?
What is the process by which autotrophs convert light energy into chemical energy?
What is the process by which autotrophs convert light energy into chemical energy?
What is the main source of energy for animals?
What is the main source of energy for animals?
What is the process through which oxygen is used to convert organic molecules to carbon dioxide and water for cellular energy?
What is the process through which oxygen is used to convert organic molecules to carbon dioxide and water for cellular energy?
Which process releases carbon dioxide back into the atmosphere similar to wildfires?
Which process releases carbon dioxide back into the atmosphere similar to wildfires?
Where is the largest pool of carbon found in the world?
Where is the largest pool of carbon found in the world?
