Final answer:
The indirect method that provides a fairly accurate measurement of metabolic rate is the measurement of oxygen consumption by an organism.the combustion of food samples to determine the caloric value, and pulse oxymeters, which measure the oxygen levels in the blood to estimate the metabolic rate.
Step-by-step explanation:
The indirect method that provides a fairly accurate measurement of the metabolic rate of an organism is the measurement of oxygen consumption.
An example of an indirect method is the Benedict-Roth spirometer method. This method measures the oxygen consumption by a person at rest or during very light exercise. The rate of oxygen consumption is recorded and used to estimate the metabolic rate of the individual.
Other indirect methods include the use of oxycalorimeters, which measure the oxygen utilization during the combustion of food samples to determine the caloric value, and pulse oxymeters, which measure the oxygen levels in the blood to estimate the metabolic rate.