Master Topic B4 of OCR Gateway Combined Science A (J250): ecosystems and interdependence, food chains and food webs, competition and adaptation, sampling techniques, biodiversity and human impact, and the cycling of materials (carbon and water). Required-practical methods, exam tips and Mid/Stronger/Top-band model answers for the Foundation and Higher tiers.
AI study tools on every lesson
Available with the £9/month subscription. Seven days free, no card needed.
Subscribe to unlock all 7 lessons
One monthly subscription gives you unlimited access to this course and every other course on LearningBro.