Trophic levels GCSE questions
Cover the answers and try these Trophic levels checks first. The full quiz in the app includes hints.
How to use these
Write your answer, then check. If you miss one, open the Trophic levels lesson before you retry.
Practice questions
Cover the answers and have a go first. Worked solutions are underneath.
Trophic level 1 is always the
In grass → slug → thrush, the thrush is a
A pyramid of biomass is usually drawn using
Pyramids of numbers can invert because
Common mistakes
- Trophic level 1 is never the predator. If you start the chain with a fox you have already lost the pyramid.
- A pyramid of numbers is not a pyramid of biomass. One tree can feed thousands of insects - numbers invert; biomass usually does not.
- Do not write "energy disappears". Lost from the food chain means transferred to the environment, mostly as heat.
- Do not invert the fraction (taken in / transferred). That gives over 100% and is obviously wrong.
Answers and working
Frequently asked questions
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