Answer:
An organism’s metabolic rate is the amount of energy expended by that organism in a given time period - usually daily.
Step-by-step explanation:
Basal metabolic rate (BMR) is the rate of energy expenditure per unit time by endothermic animals at rest. It is reported in energy units per unit time ranging from watt (joule/second) to ml O₂/min or joule per hour per kg body mass J/(h·kg). Proper measurement requires a strict set of criteria to be met.
At rest, meaning in periods of inactivity, the metabolic rate is known as the basal metabolic rate (BMR).