Answer: 2,200 Kcal
Explanation: An average adult requires at least 2,200 Kcal in a day for maintaining his/her weight and carrying on everyday activities. The average calorie requirement varies person to person depending on numerous factors such as person’s sex, age, height, weight, and level of physical activity. In each sex and age category, the higher limit of the range is for individuals who have active lifestyle and the lower limit of the range is for individuals who have sedentary lifestyle. The reductions in basal metabolic rate occur with aging, which reduce the calorie needs for adults as they age.
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In a study, the independent variable is the thing that you change to see how the change produces different results. In this study, the independent variable would be the use of nicotine.
Answer:
Muscle contraction is the activation of tension-generating sites within muscle fibers. In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as by holding a heavy book or a dumbbell at the same position. The termination of muscle contraction is followed by muscle relaxation, which is a return of the muscle fibers to their low tension-generating state.
Explanation:
Answer:
Epidemiological.
Explanation:
Epidemiological study may be defined as the type of study that includes the different group of the human population to understand the factors that might affects the health.
This study also explains the risk of a particular factor in the population. In the given question, the study is done to understand the relationship between the delayed physical growth and low-income. This clearly explains the epidemological study and this study also have proper design to study the population in cohort.
Thus, the answer is epidemiological.
