Energy Flow in Ecosystems
Biology ⇒ Ecology and Environment
Energy Flow in Ecosystems starts at 7 and continues till grade 12.
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See sample questions for grade 9
Describe the difference between a food chain and a food web.
Describe the role of sunlight in the energy flow of an ecosystem.
Describe what happens to the amount of available energy as you move up the trophic levels in a food chain.
Explain why decomposers are important for the energy flow in ecosystems.
Explain why energy flow in an ecosystem is considered a one-way process.
Explain why energy transfer between trophic levels is inefficient.
Explain why food chains rarely have more than four or five trophic levels.
If a secondary consumer receives 100 kJ of energy, how much energy was available at the producer level?
In a grassland ecosystem, if the grass produces 10,000 kJ of energy, how much energy would be available to the primary consumers?
What is a trophic level?
What is meant by the term 'energy pyramid'?
What is the main difference between a food web and an energy pyramid?
What is the role of producers in an ecosystem?
What percentage of energy is typically transferred from one trophic level to the next in a food chain?
What would happen to the energy flow in an ecosystem if all producers were removed?
