OCR Applied Science F180: B4 Biodiversity & Ecosystems | 6 Question Sets and Fully Worked Solutions
Six 30-minute practice question sets for OCR Applied Science F180 Topic Area B4: Biodiversity and ecosystems.
Each set is worth 24 marks and comes with separate fully worked solutions and question-specific marking guidance.
The pack includes:
Ecosystems and energy transfer: ecological terms, food chains and webs, brown food chains and energy-transfer efficiency.
Distribution and survival: habitats, niches, abiotic and biotic factors, human influences and climate change.
Choosing sampling techniques: quadrats, pitfall traps, sweep nets, pooters and random sampling.
Abiotic measurements and soils: field instruments, soil water, humus, particulate mass and agricultural sampling.
Practical 2 — quadrats: random positions, population estimates, percentage cover and frequency.
Practical 2 — transects: line and belt transects, environmental gradients, graphs and fieldwork planning.
Across the six sets, there are 36 structured questions worth 144 marks. Each set contains six main questions, combining calculations, written explanations, interpretation of diagrams and data, and relevant practical skills. Suitable for classroom practice, homework, focused revision or timed assessment.
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