(a)[2]
Complete the description of the human circulatory system. The circulatory system is a network of blood vessels with a [BLANK] and [BLANK] to make the blood flow in one direction.
(b(i))[2]
State two further methods that can be used to monitor heart rate.
(b(ii))[2]
Tick (✓) two correct conclusions that may be drawn from the information in Table 4.1.
(c)[2]
Calculate the percentage change in heart rate from the start to the end of exercise for the 38-year-old. Give your answer to the nearest whole number.
(d)[3]
Discuss the role of diet in reducing the risk of coronary heart disease.