Final answer:
The kidneys consume 15% of the oxygen used by the body at rest.
Step-by-step explanation:
The kidneys are vital organs responsible for various functions, including filtration of blood, regulation of electrolytes, and maintenance of fluid balance. Oxygen consumption by the kidneys is essential for these metabolic processes, and the renal system has a relatively high oxygen demand compared to other organs in the body.
The kidneys consume 15% of the oxygen used by the body at rest. This is because the kidneys are responsible for filtering the blood and removing waste products, which require oxygen to perform their functions. Additionally, the kidneys play a role in maintaining water balance in the body through urine production.