AP BIOLOGY

Detailed explanation-1: -Each of your kidneys is made up of about a million filtering units called nephrons. Each nephron includes a filter, called the glomerulus, and a tubule. The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes.

Detailed explanation-2: -Nephron or uriniferous tubule is the excretory unit in the kidney.

Detailed explanation-3: -The filtration of blood is carried out in renal corpuscle. Glomerulus and Bowman’s capsule together form the renal corpuscle. Glomerulus is a group of blood capillaries that is present in the Bowman’s capsule of nephrons and is the seat, where the process of ultrafiltration takes place.