Biology (Combined Science) · IGCSE · Edexcel · Pearson Edexcel International GCSE Science (Double Award) — Biology (Linear) — 4SD0 · Specification point · 2.82 · Structure and functions in living organisms · Co-ordination and response
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| Students should: |
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2.82 understand that a co-ordinated response requires a stimulus, a receptor and an effector |