Question

the skin secretes substances in perspiration, such as sodium, chloride, urea, and ammonia, which is similar to what other body system? renal skeletal muscular endocrine

Explanation:

The renal system (kidneys) filters blood and excretes waste products like sodium, chloride, urea, and ammonia in urine. The skin also excretes similar waste - like substances in perspiration, performing an excretory function similar to the renal system.

Answer:

Renal