Where in the kidney does filtration occur? O renal capsule
renal cortex
urine
O nephron

La reabsorción del 99 % del filtrado se produce a lo largo del túbulo renal, especialmente en el segmento contorneado proximal (un 80 % aproximadamente), y el ajuste preciso del volumen y de la composición de orina definitiva se efectúa en el túbulo contorneado distal y en el túbulo colector

Explanation:

glomerulus aka O nephron

Explanation:

Filtration takes place in the glomerulus , which is the vascular beginning of the nephron . Approximately one-fourth of the blood flow from cardiac output circulates through the kidney, the greatest rate of blood flow for any organ .

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

a symbiotic relationship with the mitochondria