Which body system transports nutrients and waste through the body?

• A. Digestive
• B. Circulatory
• C. Exocrine
• D. Endocrine

Answer: (B)

Transports nutrients and waste around the body are handled by the circulatory system. The heart pumps blood through a network of vessels, carrying nutrients absorbed from the digestive tract to cells all over the body. It also picks up waste products from those cells and transports them to organs like the kidneys and liver for processing and elimination, and even helps move carbon dioxide to the lungs for exhalation. The digestive system breaks down food and absorbs nutrients, but the actual movement of those substances through the body is done by the circulatory system. Exocrine and endocrine systems deal with secretion and signaling, not the primary transport of nutrients and wastes.