subject

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 7
A forest ecosystem has been cut down for farming. What impact might this have on the local biodiversity?
A pond ecosystem contains algae, small fish, frogs, and birds. If the small fish population decreases sharply, what might happen to the frog population?
Describe one way in which humans can help protect ecosystems.
Describe what is meant by the term 'trophic level'.
Describe what would happen if all the producers in an ecosystem died.
Explain the difference between a food chain and a food web.
Explain the role of decomposers in an ecosystem.
Explain why energy decreases as it moves up the food chain.
Name one way humans can negatively impact ecosystems.
Name two abiotic factors found in a desert ecosystem.
What is an ecosystem?
What is biodiversity?