A lack of physical activity is one factor that can increase the risk of coronary heart disease. Diet also has a role in the risk of coronary heart disease. Discuss the role of diet in reducing the risk of coronary heart disease. ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . .........................................................................................................................................

Biology

IGCSE&ALevel

CAIE

Exam No：0610_s24_qp_32. Year：2024 Question No：4(d)

Answer:

9.1.1 Describe the circulatory system as a system of blood vessels with a pump and valves to ensure one-way flow of blood

9.1.2 Describe the single circulation of a fish

9.1.3 Describe the double circulation of a mammal

9.1.4 Explain the advantages of a double circulation

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