Final answer:
Sedentary, moderately active, and active males and females have different calorie needs. These needs depend on factors like age, body size, and activity level. The provided numbers are averages and may not be applicable to everyone.
Step-by-step explanation:
On average, a sedentary male requires about 10 megajoules per day, a moderately active male requires about 12 megajoules per day, and an active male requires about 30 megajoules per day. Similarly, a sedentary female requires fewer calories than a male. However, these numbers are averages and individual calorie needs can vary depending on factors such as age, body size, and activity level.