10 Questions
What do food webs represent in an ecosystem?
Feeding relationships between organisms
How does energy flow in an ecosystem, according to the text?
From the lowest trophic level to the highest trophic levels
Why is energy flow within a food web not a perfect 1:1 conversion?
Due to losses from heat, metabolism, or uneaten matter
What is the rule of thumb for energy transfer between trophic levels?
10% of energy is transferred
In the example provided, if a grasshopper has 100 kilojoules of energy, how much energy would be transferred to the robin when the grasshopper is eaten?
10kj
What happens to the remaining energy when 10% is transferred between trophic levels?
It decreases
How does a food web differ from a food chain?
A food web includes multiple interconnected food chains
Why is it important to understand food webs in an ecosystem?
To analyze energy flow and interconnectedness of organisms
Which organisms typically belong to the highest trophic levels in an ecosystem?
Tertiary and quaternary consumers
What happens to most of the energy as it moves up trophic levels?
It gets lost as heat or used in metabolic processes by organisms
Test your knowledge on ecosystems and food chains, which are representations of feeding interactions in an ecosystem where organisms eat or are eaten. Learn about the complex relationships between organisms in different environments.
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