Heart — Easy
Recall and familiar applications. Optional hints help you find a first step.
Includes extension practice
Heart structure/function, monitoring and coronary-disease risks are required. Detailed valve categories and comparisons of atrial/ventricular wall thickness add standalone-biology depth.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- Cambridge 0973 syllabus2028–2029 · B9.2.1–8
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