Metabolic rate is .
1. the total amount of energy an animal uses in a unit of time
2. the amount of heat lost by an animal in a unit of time
3. typically higher in an ectothermic animal than in an endothermic one
4. determined when the organism is at rest with an empty stomach
5. directly proportional to body size

Metabolic rate is the total amount of energy an animal uses in a unit of time (Option 1).

In conclusion, metabolic rate is the total amount of energy an animal uses in a unit of time (Option 1).

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Metabolic rate is the total amount of energy an animal uses in a unit of time

Explanation:

Hi, metabolic rate is the total amount of energy an animal uses in a unit of time.

It refers to how quickly fuels are consumed to keep the organism’s cells functioning.

Its unit of measure can be Joules, calories or kilocalories per unit of time.

Metabolic rate is proportional to the activity level. The More active the animals is , the higher the metabolic rate is.  

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hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.