Skip to content

Course home

Sign up

7.1 Adaptations, interdependence and competition

EasyMediumHard
123456789101112131415161718192021222324252627282930313233
Question 18
F

Two bird species eat the same seeds. Species X arrives in a habitat occupied by species Y. X does not eat Y or transmit disease to it.

After several years, Y survives only in small, widely separated groups. Few young Y birds are produced even where some seeds remain.

Which explanation best links the arrival of X to the low production of young Y birds?

[1]
A

Competition reduces Y numbers, so surviving Y birds have more available mates.

B

Competition reduces Y numbers, so surviving Y birds have fewer available mates.

C

Predation reduces Y numbers, so surviving Y birds have fewer available mates.

D

Predation reduces Y numbers, so surviving Y birds have more available mates.

Markscheme

7.1 Adaptations, interdependence and competition Questions

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

40 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.

Question bank