The minimum energy necessary to sustain life is called the Choose...REEBMRRMRRER. This type of energy is measured as either the basal metabolic rate or the Choose...resting metabolic expenditureresting energy expenditureresting metabolic ratenone of the above. Over time, a person’s RMR varies by less than 5%. A person’s RMR Choose...increasesdecreasesxx as they age, because some lean tissue is replaced by fat. Lean tissue has Choose...greaterlessxx metabolic activity than fat tissue.

Energy costs of physical activity depend on the activity’s type, Choose...skill level requirementsstrength requirementsdurationtime of day and intensity. The energy associated with fidgeting and maintenance of posture is called Choose...NERTNEATEATMEEMT.

The energy output our bodies expend while digesting, absorbing, and metabolizing nutrients is collectively called the thermic effect of food. The TEF is lowest for Choose...fatproteincarbohydratesall are the same and highest for Choose...fatproteincarbohydrateall are the same. Typically, TEF accounts for approximately Choose...5% or less10% or less20% or less25% or less of total energy expenditure.