What body system is responsible for transporting nutrients and oxygen?

• A. Digestive system
• B. Nervous system
• C. Endocrine system
• D. Circulatory system

Answer: (D)

The circulatory system is the body system responsible for transporting nutrients and oxygen throughout the body. It consists primarily of the heart, blood vessels, and blood. The heart pumps oxygen-rich blood from the lungs to the tissues of the body, while also gathering carbon dioxide and other waste products to be expelled. The blood carries essential nutrients absorbed from the digestive system, making it vital for supplying cells with the components they need for energy, growth, and repair.

The circulatory system ensures that all body tissues are adequately supplied with oxygen and nutrients, facilitating cellular processes and maintaining homeostasis. This role is crucial for overall health, as ineffective transport can lead to tissue damage and organ dysfunction.