Energy Flow in Ecosystems
Biology ⇒ Ecology and Environment
Energy Flow in Ecosystems starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Energy Flow in Ecosystems.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
A food chain in a pond is: Algae → Small Fish → Large Fish → Bird. If the algae have 2,000 kJ of energy, how much energy would the bird receive?
A grassland ecosystem has 5,000 kJ of energy at the producer level. Estimate the energy available at the tertiary consumer level.
Describe the difference between a food chain and a food web.
Describe the difference between gross primary productivity and net primary productivity.
Describe what is meant by a trophic level.
Explain the role of producers in the energy flow of an ecosystem.
Explain the significance of the 10% law in energy transfer.
Explain why decomposers are essential for the continuation of energy flow in an ecosystem.
Explain why energy pyramids are always upright and not inverted.
Explain why food chains usually have no more than four or five trophic levels.
If a producer contains 10,000 kJ of energy, how much energy would you expect to be available to the primary consumer?
In a food web, what would likely happen if all the primary consumers were removed?
What is net primary productivity (NPP)?
What is the main function of decomposers in an ecosystem?
What percentage of energy is typically transferred from one trophic level to the next in a food chain?
