Podcast
Questions and Answers
What do food webs represent in an ecosystem?
What do food webs represent in an ecosystem?
- Territorial boundaries between trophic levels
- Physical structures where organisms interact
- Feeding relationships between organisms in different food chains (correct)
- Energy storage locations within the ecosystem
How does energy flow within an ecosystem, as described in the text?
How does energy flow within an ecosystem, as described in the text?
- In a random pattern irrespective of trophic levels
- Linearly through a single food chain
- Only between trophic levels of quaternary consumers
- In a complex manner through interconnected food chains (correct)
What happens to energy when it is transferred from one trophic level to the next?
What happens to energy when it is transferred from one trophic level to the next?
- 50% of the energy is transferred
- 100% of the energy is transferred
- 5% of the energy is transferred
- 10% of the energy is transferred (correct)
Why is only 10% of energy transferred between trophic levels?
Why is only 10% of energy transferred between trophic levels?
What does the example of a grasshopper being eaten by a robin illustrate?
What does the example of a grasshopper being eaten by a robin illustrate?
In what direction does energy flow within an ecosystem?
In what direction does energy flow within an ecosystem?
What do food webs help us understand about ecosystems?
What do food webs help us understand about ecosystems?
How does the complexity of energy flow differ between a food chain and a food web?
How does the complexity of energy flow differ between a food chain and a food web?
What causes the loss of energy during transfers between trophic levels?
What causes the loss of energy during transfers between trophic levels?
How does the rule of thumb for energy transfer between trophic levels impact ecosystems?
How does the rule of thumb for energy transfer between trophic levels impact ecosystems?
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