Interdependence - GCSE Biology Definition

Reviewed by: Lára Marie McIvor

Published

Interdependence in biology is when living things, like plants and animals, depend on each other for survival. This means that all organisms in an ecosystem rely on others for things like food, shelter, and helping to keep the environment balanced. For example, plants provide oxygen for animals, and animals give carbon dioxide back to plants. Predators eat prey to keep populations in check, and plants rely on insects to spread their pollen. These connections show that every living thing is linked, and changes affecting one can impact many others. Understanding interdependence helps us see why it's important to protect our environment and all its living things.

Examiner-written GCSE Biology revision resources that improve your grades 2x

  • Written by expert teachers and examiners
  • Aligned to exam specifications
  • Everything you need to know, and nothing you don’t
GCSE Biology revision resources

Share this article

Lára Marie McIvor

Reviewer: Lára Marie McIvor

Expertise: Biology, Psychology & Sociology Subject Lead

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.

The examiner written revision resources that improve your grades 2x.

Join now