OCR GCSE Combined Science A · J250
Specification B4.1a, B4.1b · Biology Paper 2
The repeated movement and reuse of materials between the living and non-living parts of an ecosystem.
Revise: Material Cycling in EcosystemsOrganisms need materials to build their bodies and carry out life processes. These materials are not used once and then lost forever: they move between organisms and their surroundings and can be used again. This repeated movement and reuse is material cycling.
- Revise: Microorganisms in Material Cycling