Question

select the correct answer. which body part belongs to the circulatory system? a. diaphragm b. heart c. trachea d. kidney

Explanation:

The circulatory system is responsible for transporting blood, oxygen, and nutrients throughout the body. The heart is a key organ in this system as it pumps blood. The diaphragm (A) is part of the respiratory system (helps in breathing). The trachea (C) is also part of the respiratory system (air passage). The kidney (D) is part of the excretory system (filters waste from blood).

Answer:

B. heart