Interdependence โ€” Why It Matters

Part of Ecosystems Communities ยท Section 4 of 15

Key FactsUnit: EcologyGCSE

In a stable community, all species depend on each other. If one species is removed, it creates a knock-on effect:

  • If a predator disappears โ†’ prey population explodes โ†’ they eat all their food โ†’ they starve
  • If pollinators disappear โ†’ plants can't reproduce โ†’ herbivores lose food โ†’ predators lose prey
  • If decomposers disappear โ†’ dead material accumulates โ†’ nutrients locked up โ†’ plants can't grow

This key facts covers Interdependence โ€” Why It Matters within Ecosystems Communities for GCSE Biology. Topic 1: Ecosystems Communities It is section 4 of 15 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.

Practice questions for Ecosystems Communities

What is a community in ecology?

  • A. All organisms of one species in an area
  • B. All the different species living in an area
  • C. The place where an organism lives
  • D. A community plus the abiotic environment
1 markfoundation

Explain what is meant by interdependence in an ecosystem.

2 marksstandard

Quick recall flashcards

What is a community?
All the populations of different species living and interacting in the same area at the same time.
What is a habitat?
The place where an organism lives โ€” the specific part of the environment that provides everything the organism needs to survive.

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