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Exam-style practice

Circulatory systems answer explanations

Review worked answers and explanations for Circulatory systems. Aligned to Cambridge IGCSE Combined Science.

Answer explanations

Question 1 of 2

Review the answer support, then move sideways through the set.

Paper 3 structured question: Circulatory systems

Paper 3Theory (Core)2 marks

Description

Components of the Circulatory System

The circulatory system consists of the heart, blood vessels (arteries, veins, capillaries), and blood. The heart pumps blood, while valves ensure unidirectional flow.

  1. a

    Describe the role of the heart in the circulatory system.

    [2]