Which organ system is primarily responsible for transporting nutrients, gases, and waste products throughout the body?

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

Answer: (B)

Verified step by step guidance

1. Begin by identifying the primary function of each organ system listed in the problem.
2. Consider the circulatory system: It is responsible for transporting blood throughout the body, which carries nutrients, gases (such as oxygen and carbon dioxide), and waste products.
3. Examine the nervous system: Its main role is to transmit signals between different parts of the body, not to transport substances like nutrients or gases.
4. Look at the respiratory system: It primarily facilitates the exchange of gases (oxygen and carbon dioxide) between the body and the environment, but does not transport nutrients or waste products throughout the body.
5. Review the digestive system: It is responsible for breaking down food and absorbing nutrients, but the transport of these nutrients to cells is carried out by the circulatory system.