GCSE Biology (WJEC)

Topic Summaries

Ecosystems

Interdependence

  • Within a community, each species depends on other species for food, shelter, pollination, seed dispersal, etc.
  • A stable community is one where all the species and environmental factors are in balance with each other so that population sizes remain relatively constant.
  • If one species is removed or added it can affect the whole community due to interdependence.

Unlock Interdependence

Sign up to unlock the rest of this topic — plus every other topic, video, flashcard set and eBook guide in your SnapRevise+ subscription.

Cancel anytime — instant access the moment you sign up.