Communities: Ecosystems
Biology: AQA GCSE Higher, topic 7.1.1
Ecosystems
An ecosystem is made up of living (biotic) and non-living (abiotic) parts. In an ecosystem, there are different levels of organisation:
Individuals
- Individual organisms are the smallest part of an ecosystem.
Populations
- Populations of individual organisms make up a single species.
Communities
- Communities are made up of populations of different species.
Test yourself on Communities: Ecosystems
Levels of Organisation
What is a marine ecosystem?
What is an individual organism within an ecosystem?
What would a population become if individuals from a different species joined it?
Why can a savannah be classified as an ecosystem?