The majority of the nephron resides in the: Renal pelvis Renal pyramid Renal cortex Calyces

The majority of the nephron resides in the **renal cortex**. Here's a brief explanation of the options: - **Renal pelvis**: This is the funnel-shaped structure that collects urine from the kidneys and directs it to the ureter. It does not contain nephrons. - **Renal pyramid**: These are structures within the renal medulla that contain the collecting ducts and are involved in the concentration of urine, but they do not house the majority of the nephron. - **Renal cortex**: This is the outer part of the kidney where the majority of the nephron's components, including the glomeruli and proximal and distal convoluted tubules, are located. - **Calyces**: These are cup-like structures that collect urine from the renal pyramids and funnel it into the renal pelvis. They do not contain nephrons. Thus, the correct answer is **renal cortex**.