EcologyAQA GCSE Biology 8461

Trophic Levels in an Ecosystem

Work through the notes, try the practice questions, then take the quiz. The report tells you exactly what to revise next. (2026)

Practice progress

5 MCQs

0 of 5 attempted

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Remaining

1
In the food chain grass → rabbit → fox, what trophic level is the rabbit?
Answer & explanation
Correct: option B
The rabbit eats grass (the producer), so it is a primary consumer at level 2.
2
What is the role of organisms at trophic level 1?
Answer & explanation
Correct: option B
Level 1 organisms are producers (plants or algae) — they make their own food by photosynthesis.
3
Which direction should food chain arrows point?
Answer & explanation
Correct: option B
Arrows point from food to eater because energy flows in that direction.
4
Decomposers are essential because they:
Answer & explanation
Correct: option C
Decomposers (bacteria, fungi) break down dead organisms, releasing nutrients for producers to reuse.
5
An apex predator is best described as:
Answer & explanation
Correct: option B
Apex predators sit at the top of food chains and have no natural predators — e.g. golden eagle, orca.

EcologyAQA GCSE Biology 8461

Work through the notes, try the practice questions, then take the quiz. The report tells you exactly what to revise next. (2026)

5 MCQs

0 of 5 attempted

Correct

Incorrect

Remaining

1
In the food chain grass → rabbit → fox, what trophic level is the rabbit?
Answer & explanation
Correct: option B
The rabbit eats grass (the producer), so it is a primary consumer at level 2.
2
What is the role of organisms at trophic level 1?
Answer & explanation
Correct: option B
Level 1 organisms are producers (plants or algae) — they make their own food by photosynthesis.
3
Which direction should food chain arrows point?
Answer & explanation
Correct: option B
Arrows point from food to eater because energy flows in that direction.
4
Decomposers are essential because they:
Answer & explanation
Correct: option C
Decomposers (bacteria, fungi) break down dead organisms, releasing nutrients for producers to reuse.
5
An apex predator is best described as:
Answer & explanation
Correct: option B
Apex predators sit at the top of food chains and have no natural predators — e.g. golden eagle, orca.