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Approximately how many gallons of blood are in the average adult human body?
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17. The Blood
Introduction To Blood
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Approximately how many gallons of blood does an average adult human have?
A
About 7 gallons
B
About 1.5 gallons
C
About 0.5 gallons
D
About 3.5 gallons
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Understand that the average adult human blood volume is typically measured in liters or gallons and depends on factors such as body size and sex.
Recall that the average blood volume for an adult is approximately 5 liters, which is a commonly accepted physiological value.
Convert liters to gallons using the conversion factor: 1 gallon is approximately 3.785 liters.
Use the formula to convert blood volume from liters to gallons: \(\text{Gallons} = \frac{\text{Liters}}{3.785}\).
Calculate the approximate number of gallons by dividing 5 liters by 3.785 liters per gallon to estimate the blood volume in gallons.
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