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SingaporeBiologyQuick questions
Organisms and Their Environment
Quick questions on Ecosystems and food chains explained: O-Level Biology
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is effect of removing an organism?Show answer
Because organisms are linked, removing one affects others. For example, if all the grasshoppers in the chain above were removed, the frogs would lose their food and their population would fall, while the grass might increase as fewer grasshoppers eat it. Knock-on effects can spread through the web.
What is q1?Show answer
Define a producer. [1 mark]
What is q2?Show answer
In the chain grass to grasshopper to frog, state the trophic level of the grasshopper. [1 mark]
What is q3?Show answer
Explain what would happen to the grass if the grasshoppers were removed from the chain grass to grasshopper to frog. [2 marks]
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