Final answer:
The average human body contains about a gallon and a half of blood, which is between 4.7 and 5.7 liters. Adult males average slightly more blood than females, and blood plasma constitutes a significant part of this volume. b) A gallon and a half.
Step-by-step explanation:
Approximately how much blood is in the human body? The correct answer is b) A gallon and a half. The average adult body contains between 4.7 and 5.7 liters (5-6 quarts) of blood, which is equivalent to about a gallon and a half when converted. It's important to note that adult males typically average about 5 to 6 liters of blood while females average 4-5 liters.
Blood makes up about 8 percent of adult body weight, and blood plasma, which is about 92 percent water, carries various proteins and other substances necessary for bodily functions. Additionally, the composition of blood includes cells such as erythrocytes (red cells), leukocytes (white cells), and platelets which are crucial for carrying oxygen, immune defense, and clotting, respectively.