Ecosystems
Biology ⇒ Ecology and Environment
Ecosystems starts at 6 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows 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 8
A grassland ecosystem has 10,000 units of energy at the producer level. If only 10% of energy is transferred to the next trophic level, how much energy is available to primary consumers?
A pond ecosystem contains algae, small fish, frogs, and birds. If the small fish population decreases sharply, what is a likely effect on the frogs?
Describe the difference between a food chain and a food web.
Explain how humans can negatively impact ecosystems.
Explain the importance of decomposers in an ecosystem.
Explain the role of sunlight in an ecosystem.
Explain why energy flow in an ecosystem is described as a one-way process.
What is the main source of energy for most ecosystems?
What would most likely happen if all the producers in an ecosystem died?
