Several factors are associated with the risk of developing cardiovascular disease (CVD). Obesity is one risk factor associated with CVD. The ability of a group of people to lose weight was investigated. This investigation considered: - the body mass index (BMI) of the person - the levels of amylase in their saliva - the bacteria present in their digestive system. The BMI of a person can be calculated using the formula: $$\(\mathrm{BMI}=\)$$ mass in $$\(\mathrm{kg} \div(\text { height in } \mathrm{m})^{2}\)$$ A person's BMI is used to put them into a weight category. A person with a BMI of 25 and above, but below 30, is considered to be overweight but not obese. Which describes the body mass of a person who is obese? (1)

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