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B4.1 Ecosystems Revision — OCR GCSE Combined Science A J250

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Combined Science
OCR GCSE Combined Science A
Community Level Systems
Ecosystems

OCR GCSE Combined Science A · J250

Ecosystems

Understand the concept of a food web and explain the complex interrelationships associated with them.
Evaluate how variation among individuals allows living things to survive and adapt within the same ecosystem.

Subtopics

1
Material Cycling in Ecosystems
2
Microorganisms in Material Cycling
3
Importance of Carbon and Water Cycles

6 of 6 subtopics have revision notes available.

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4

Levels of Ecosystem Organisation

Effects of Abiotic and Biotic Factors

Interdependence and Competition