Skip to content

Course home

7.4 Trophic levels in an ecosystem

7.4 Trophic levels in an ecosystem

EasyMediumHard
1234567891011121314151617181920212223242526272829303132333435
Question 1
F

A food chain in a pond is shown.

algae → \rightarrow\,→ water flea → \rightarrow\,→ stickleback → \rightarrow\,→ heron

Which organism is the secondary consumer, and at which trophic level is it?

[1]
A

Water flea, at trophic level 3

B

Stickleback, at trophic level 2

C

Heron, at trophic level 3

D

Stickleback, at trophic level 3

Markscheme

7.4 Trophic levels in an ecosystem Questions

  1. GCSE
  2. /Biology
  3. /7.4 Trophic levels in an ecosystem

61 exam-style questions on AQA GCSE Biology 7.4 Trophic levels in an ecosystem, covering 7.4.1 Trophic levels, 7.4.2 Pyramids of biomass, and 7.4.3 Transfer of biomass. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank