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 10
A grassland ecosystem has 10,000 kJ of energy at the producer level. If only 10% of energy is transferred to each trophic level, how much energy is available to primary consumers?
A pond ecosystem contains algae, small fish, large fish, and birds. If the population of small fish decreases significantly, what is a likely effect on the large fish population?
Describe one way human activities can negatively impact ecosystems.
Describe the role of producers in an ecosystem.
Explain the difference between a food chain and a food web.
Explain the difference between primary and secondary succession.
Explain what is meant by the term 'biome'.
Name two abiotic factors that can affect an ecosystem.
