Exam (elaborations)
Biology Topic 6 Short Response Assessment (Practice Paper 2) with Complete Solutions
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On the diagram, label the aorta (1 mark) On the diagram, label the right artium (1 mark) Explain how valves control the flow of blood through the heart (2 marks) - valves open and close in response to changes in blood pressure/heart contraction/pumping - valve prevents backflow/maintains dir...
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