What is the primary function of the kidneys?

Explanation

The kidneys filter waste products, excess salts, and extra fluid from the blood, forming urine that is eventually excreted from the body. They also help regulate blood pressure and maintain the body’s electrolyte balance. Most people are born with two kidneys, though a person can survive and function normally with just one. Explore more Everyday Science MCQs on mcqstutor to keep practicing.