AP BIOLOGY

Detailed explanation-1: -The functional unit of the kidney is called the nephron. It comprises of a coiled renal tubule and a vascular network of peritubular capillaries . The tubule consists of different regions, each with their own important function.

Detailed explanation-2: -The nephron, the functional unit of the kidney, is responsible for removing waste from the body. Each kidney is composed of over one million nephrons that dot the renal cortex, giving it a granular appearance when sectioned sagittally (from front to rear).

Detailed explanation-3: -nephron, functional unit of the kidney, the structure that actually produces urine in the process of removing waste and excess substances from the blood. There are about 1, 000, 000 nephrons in each human kidney.