Coordination and response — Easy
Recall and familiar applications. Optional hints help you find a first step.
Includes extension practice
Nervous-system organisation, simple reflexes and sense-organ definitions are required. Synaptic mechanisms, detailed eye anatomy, accommodation, rod/cone distribution and foveal function add standalone-biology content.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- Cambridge 0654 syllabus2028–2029 · B13.1.1–7
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