Ecosystems (Edexcel GCSE Biology Combined Science): Flashcards

Interaction of living organisms (community) & their environment

Populations of different species living together in a habitat

All organisms of one species in a habitat

Plants/algae that photosynthesize to create biomass at base of food chains

Bacteria & fungi break down dead organisms & recycle nutrients

Non-living elements of environment

Competition within same species

Biotic & abiotic factors balanced; populations remain constant

One organism benefits, other is harmed

Both organisms benefit from relationship