Which body system helps eliminate waste from the body?

• A. Digestive System
• B. Nervous System
• C. Immune System
• D. Urinary System

Answer: (D)

The urinary system plays a crucial role in eliminating waste from the body by filtering blood to produce urine, which contains waste products and excess substances. This process begins in the kidneys, where blood is filtered, and the resulting waste is collected in the urinary bladder before being excreted from the body through the urethra.

While the digestive system is also involved in waste elimination, its primary function is the digestion and absorption of nutrients from food. The nervous system is responsible for transmitting signals throughout the body and coordinating responses, rather than focusing specifically on waste removal. The immune system's primary role is to protect the body from pathogens and infections, not to eliminate waste. Hence, the urinary system is the correct answer, as it specifically targets the removal of metabolic waste and helps maintain homeostasis in the body.