Question

type the correct answer in the box. spell all words correctly
which part of the excretory system has an outer cortex and an inner medulla?
the have an outer layer called a cortex. the inner layer is the medulla. within the medulla are about a dozen triangular areas called renal pyramids. every person has two of these organs in the rear of the abdominal cavity.

Explanation:

The kidneys are part of the excretory system. They have an outer cortex and an inner medulla. The description in the question matches the structure of the kidneys.

Answer:

kidneys