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7.1 Adaptations, interdependence and competition

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Question 10

In a lake, water fleas feed on algae, and small fish called sticklebacks feed on water fleas.

Pike are introduced into the lake. The pike eat sticklebacks, and the stickleback population decreases.

What is most likely to happen to the populations of water fleas and algae during the next year?

[1]
A

Water fleas increase; algae decrease.

B

Water fleas decrease; algae increase.

C

Water fleas decrease; algae decrease.

D

Water fleas increase; algae increase.

Markscheme

7.1 Adaptations, interdependence and competition Questions

  1. GCSE
  2. /Biology
  3. /7.1 Adaptations, interdependence and competition

82 exam-style questions on AQA GCSE Biology 7.1 Adaptations, interdependence and competition, covering 7.1.1 Communities, 7.1.2 Abiotic factors, 7.1.3 Biotic factors, and 7.1.4 Adaptations. Each one has a worked solution and a mark scheme showing where the marks go.

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